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HUMAN COMPUTER INTERACTION II IT Elective 2 MODULE

HIGHWAY AND

RAILROAD

ENGINEERING

Authors

REDENTOR C. VALENCIA

University of Rizal System Antipolo Campus

College of Engineering

COURSE GUIDE

Highway and Railroad Engineering

Introduction

Hi, I’m Engr. Redentor C. Valencia, your Professor in this course, a faculty member in URS College of Engineering, with professional license in Civil Engineering and in Sanitary & Environmental Engineering, also with

a transportation engineering studies from my UP Masters in Urban & Regional Planning, and with a diploma of graduate studies in Civil Engineering at VUB, Brussels, Belgium.

Welcome to your OnLine Course in Google Classroom. If you have questions, email me at redentor.valencia@urs.edu.ph

Course Title: Highway and Railroad Engineering

There’s 20 of you enrolled this semester; credit of 3 units, 3 hours weekly for a total of 42 hours coursework

Course Description

It presents the methods & underlying principles for the design & control of the elements of road & railroad infrastructure. Students would know and use transportation system terminology, flow analysis, driver, vehicle and road characteristics and aspects of road geometrics, road construction drainage, pavements and maintenance

General Objectives: Addressing BSCE Program Outcomes

This is an enhancement-type course for 3rd Year BSCE Program, addressing 4 of 13 Program Outcomes

PO-A Apply knowledge in mathematice and science to solve complex engineering problems

PO-C Design a system, component or process to meet desired needs witin realistic constraints, in accordance with standards

PO-E Identify, formulate and solve complex civil engineering problem

PO-G Communicate effectively civil engineering activities with the engineering community and the general public at large

Course Objectives

At the end of the course, the students must achieve the following Learning Outcomes (LO)

LO-1 Define the basic concepts of highway and railroad transportation and present how to apply them in civil engineering practice

LO-2 Recognize the concepts associated with the geometric and structural design of highway and railway systems.

LO-3 Explain the basic service requirements of highway and detail the procedure to conduct level of service analysis.

LO-4 Develop basic traffic stream parameters and models, traffic flow models, and apply the queuing theory

LMS Contents

Contents

UNIT 1 - HISTORY & PRINCIPLES OF TRANSPORTATION ............................................................................ 3

Module 2 Scope expectations and competencies in highway and railroad engineering .......................... 3

Module 3 Role of transportation infrastructure system in national development ...................................... 4

Module 4 Difference of Transportation as Public Infrastructure and as Private Enterprise ...................... 5

UNIT 2 - HIGHWAY DEVELOPMENT & PLANNING .......................................................................................... 5

Module 5 Difference of Traffic Management & Traffic Engineering ......................................................... 5

Module 6 Surveys in Transportation Studies and the Significant Data Needed ....................................... 6

UNIT 3 - DESIGN CRITERIA & ASSUMPTIONS FOR HIGHWAY & RAILROAD ............................................... 7

Module 7 Safety Criteria in Engineering Design of Highways .................................................................. 7

UNIT 4 - GEOMETRIC DESIGN OF HIGHWAYS & RAILWAYS ........................................................................ 8

Module 8 Highway Design of Horizontal Curve ...................................................................................... 8

Module 9 Highway Design of Vertical Curves ......................................................................................... 9

Week 5, Sept 25, 2020 (Fri) PRELIMINARY EXAMINATION PERIOD ........................................................... 9

Module 10 Highway Design of Superelevation ....................................................................................... 10

Module 11 Sight Distance ....................................................................................................................... 10

UNIT 5 - STRUCTURAL DESIGN OF RAILWAYS & PAVEMENT .................................................................... 11

Module 12 Structural Design of Road ..................................................................................................... 11

UNIT 6 - MAINTENANCE AND REHABILITATION ........................................................................................... 12

Module 13 Structural Design of Highway and Railway Stuctures ........................................................... 12

Module 14 Highway and Railroad Maintenance Process and Activities ........................................... 13

UNIT 7 – TRAFFIC ENGINEERING .................................................................................................................. 14

Module 15 Traffic Modelling OD Trip Generation & Trip Distribution Analyses ...................................... 14

Module 16 Modal Choice Analysis ......................................................................................................... 15

Module 17 Trip Assignment Traffic Analysis ........................................................................................... 16

Module 18 Traffic Characteristics: Speed, Flow and Density ................................................................. 17

Module 19 Traffic Queue and Level of Service (LOS) ............................................................................ 18

Week 11: Nov 11, 2020 (Wed) MID-TERMS EXAMINATION PERIOD ......................................................... 18

Module 20 Traffic Measures for a Highway Intersection ......................................................................... 19

Module 21 Design Criteria for Different At-Grade & Grade-Separation in Major Highway Intersection .. 20

UNIT 8 – ROAD TRAFFIC ANALYSIS .............................................................................................................. 21

Module 22 Highway Traffic Volume Studies ........................................................................................... 21

Module 23 Highway Traffic Volume Studies ........................................................................................... 22

Module 24 Expressway Capacity Analysis ............................................................................................. 23

Module 25 Expressway Capacity Analysis ............................................................................................. 24

UNIT 9 – CONSTRUCTION MATERIALS & TESTING ..................................................................................... 25

Module 26 Organizing a Municipal Road Maintenance Process ............................................................ 25

Module 27 Organizing a PNR/Lightrail Maintenance Process ................................................................ 26

Week 15: Dec 11, 2020 (Fri) FINALS EXAMINATION PERIOD ..................................................................... 26

Course Structure

Based on the minimum requirements of CHED Memo No.92 s.2017, there are 9 Main Units which I grouped a total of 28 Learning Modules, each for 1.5 hours of learning activities with required outputs; and, I’ll be grading learning assessment based on rubrics designed for those outputs.

UNIT 1 - HISTORY & PRINCIPLES OF TRANSPORTATION: different modes of transportation, characteristics of road transport scope of highway and traffic engineering

Module 2 Scope expectations and competencies in highway and railroad engineering

Week 1, Aug 28 2020, Friday

Module Introduction: I included in your course guide video materials for e-file of step-by-step activities to help you achieve today’s Module 1 learning outcomes that I mentioned above

Learning Video: Introduction to Transportation Engineering (19:19 mins)

Reference: CE 355 Principles of Transportation Engineering, Iowa State University

Link: https://www.youtube.com/watch?v=suTYujyKiwA

Video Intro: (written text provided by this writer or the expert) This video provides a brief into on transportation engineering including a discussion of key players, processes and other aspects of transportation. After this lecture, the students will be able to discuss the various activities involved in transportation engineering, as well as recent trends in transportation of persons and goods, and define key transportation agency acronymns and explain the roles of these agencies

Other OER: Philippine’s Ambitious 1,000 km Road Network – Luzon Spine Expressway (3:16 mins)

Link: https://www.youtube.com/watch?v=mJxn4zBCEFI&t=121s

OER Intro: After watching this video, the student can reflect and formulate his/her philosophy of highways development, its role and impact in Philippine economic development

Related OER 20 Expressways in the Philippines (14:11)

Link: https://www.youtube.com/watch?v=K711Zdthj0c

OER Intro: After watching this video, the student can identify and describe historical and recent highways projects and are able to formulate his/her philosophy on relation of highway engineering in promoting economic activity and mitigating traffic congestion

SAQ: (This is a self-assessment question, and there’s one at the end of each module

Multiple Choice type of learning assessment in Google Form

SAQ (Rubrics) : ASAQ

Question 1

Question 2

Question 3

Question 4

Question 5

Total Correct Answers:

Module 3 Role of transportation infrastructure system in national development

Week 2: Sept 2, 2020, Wed

Module Introduction: I included in your course guide video materials for e-file of step-by-step activities to help you achieve today’s Module 1 learning outcomes that I mentioned above

OER: Hierarchy for Roads & Road Classification (5:07 mins)

Prof. David Levinson, University of Minnesota, Dept of Civil, Environmental & Geo-Engg; Link: https://www.youtube.com/watch?v=vL78ILT5gE8&t=129s

This video provides a brief intro on hierarchy of roads, to help students formulate the philosophy and reasons how all transportation facilities are arranged hierarchically into two distinct functions through-movement and land access. This allows for: the aggregation of traffic to achieve economies of scale in construction and operation (high speeds); reduce the number of conflicts (or accidents); helps maintain the desired (harmony, compatibility) of road traffic and land-use functions (residential, commercial, industrial, etc), and finally less redundancy and save costs in public infrastructure

Related OER: What’s that Infrastructure? (Ep.1 Trnsportation Infrastructure) (4:15 mins)

Practical Engineering. Link: https://www.youtube.com/watch?v=oA2-80lY5rE&t=11s

This video by Practical Engineering helps 3rd year students formulate the philosophy of public infrastructure that usually go unnoticed to non-engineers, to identify, describe and explain the important elements and functions of transportation infrastructure

Related OER What’s that infrastructure? (Ep. 2 – More Transportation Infrastructure) (6:11)

Practical Engineering; Link: https://www.youtube.com/watch?v=Y-uvoaTQH5U&t=2s

This continuation video by Practical Engineering helps 3rd year students to further distinguish important components of transportation infrastructure, what correctly or incorrectly done and how they’re maintained in good operation

SAQ: (This is a self-assessment question, and there’s one at the end of each module) Formulate your own philosophy and reflections, applying learned concepts and terms about Transportation Infrastructure System. Underline at least 10 significant transportation concepts that’s you learned in the videos.

SAQ (Rubrics) ASAQ: 4 3 2 1

Formulated a philosophy about transportation system

Used 10 significant transportation system concepts

Uploaded in Google Forms/Folder

Punctuality of submission

Total Points:

Module 4 Difference of Transportation as Public Infrastructure and as Private Enterprise. Identify at least 5 examples that are Public and 5 that are Private or Partnership

Week 2: Sept 4, 2020, Fri

Learning Video: How Public-Private Partnerships Work in Infrastructure Projects (15:35 mins)

Cosette Canilao, Exec. Dir. Of PPP Center, interview by Cristy dela Paz of Rappler Talk; Link: https://www.youtube.com/watch?v=fd91zdF-ORA

This Talk Interview gives important insights that help students formulate strategies that distinguishes between publicly and privately-owned and public-private partnerships in transportation infrastructure development

Related OER: Build Operate Transfer of Toll Roads, Other Transportation System (3:03 mins)

Link: https://www.youtube.com/watch?v=eEq1yn-2nko

This student-made video gives important insights to help 3rd Year students formulate strategies how highways and other transportation are constructed using public-private partnerships

SAQ: Formulate your own philosophy and strategies for public, private and for public-private partnership is transportation system development, ownership and operation; give 2 actual examples each, like toll roads, lightrail, bus transit and jeepney system

SAQ (Rubrics) ASAQ: 4 3 2 1

Philosophy on distinction of public, private & PPP

Publicly-owned/operated infrastructure – 2 examples

Privately-built/operated infrastructure – 2 examples

PPP built-operate-transfer infrastructure – 2 examples

Total Points:

UNIT 2 - HIGHWAY DEVELOPMENT & PLANNING: Classification of roads, road patterns, planning survey; highway alignment and surveys

Module 5 Difference of Traffic Management & Traffic Engineering. Identify at least 5 actual examples each, that are used in the Philippines

Week 3: Sept 9 2020, Wed

OER: How Cities Street Patterns Work? (City Planning)

Urban Take; Link: https://www.youtube.com/watch?v=VzbX_jolEH4

This, along with the previous lesson on hierarch of roads, help students identify street patterns, and formulate a philosophy on Traffic Management and Traffic Engineering

Related OER: Traffic Flow Measured on 30 different 4-way Intersections (6:07 mins)

Euverus; Link: https://www.youtube.com/watch?v=yITr127KZtQ

This helps student to identify and describe various traffic engg solutions on 4-way intersection and their effectiveness, in terms of speed density & flow

Related OER: The Simple Solution to Traffic (4:29 mins)

CGP Grey; Link: https://www.youtube.com/watch?v=iHzzSao6ypE

This helps a highways engg student recognize traffic queuing and formulate philosophy of what causes traffic congestions, and to prepare him/her to consider traffic engineering or management solutions

SAQ: Differentiate and explain Traffic Management Measures and Traffic Engineering Solutions; cite 5 examples each, that’s used in the Philippines by DOTC and DPWH. Use Excel to make tables, columns and rows, using mobile phones

SAQ (Rubrics) ASAQ: 4 3 2 1

Differentiated between Traffic Mgt & Traffic Engg Solutions

Traffic Management Measures - 5 examples

Traffic Engineering Solutions – 5 examples

Used Excel in Mobile Phone

Total Points:

Module 6 Surveys in Transportation Studies and the Significant Data Needed: Geodetic Survey, Origin-Destination Survey & Vehicle Count Survey. Identify at least 5 each

Week 3: Sept 11, 2020, Fri

OER 1: Origin-Destination (OD) Study in Traffic Engineering (2:36 mins)

APSEd, http://learn.apsed.in Link: https://www.youtube.com/watch?v=AQPYPy-ML4M

OER 2: Highway Alignment (Geodetic) Survey in Highway Engineering (3:31 mins)

Pravin Mane, All About Civil Engineering Link: https://www.youtube.com/watch?v=a6Trj5tqFNY

OER 3: Classified Traffic Volume Count (2:23 mins)

Dani Charuvil Link: https://www.youtube.com/watch?v=WcKx9u6XmDI

OER 4: Speed and Delay Surveys (9:08 mins)

WIT Solapur – Professional Learning Community Link: https://www.youtube.com/watch?v=dY3JXgd9Uvs

These OERs introduce the students to the different kinds of surveys in Transportation Studies; namely, Origin-Destination (OD) Trip Surveys, Highway Alignment (Geodetic) and the Classified Traffic Volume Survey and the Speed and Delay Survey

SAQ: Describe different kinds of surveys used in Highway Engineering, list important equipment used, from your watching the video

SAQ (Rubrics) ASAQ: 4 3 2 1

Described Highway Alignment Geodetic Survey, equip’t list

Described Origin-Destination Trip Survey; equipment list

Described Classified Traffic Volume Count, equipment list

Described Speed and Delay Survey, equipment list

Total Points:

UNIT 3 - DESIGN CRITERIA & ASSUMPTIONS FOR HIGHWAY & RAILROAD

Module 7 Safety Criteria in Engineering Design of Highways

Week 4: Sept 16, 2020, Wed

OER 1: How are Highways Designed? (12:20 mins)

Grady Hillhouse, San Antonio, Texas (July 7, 2020) Practical Engineering Link: https://www.youtube.com/watch?v=9XIjqdk69O4&t=53s

This OER introduces 3rd year students to explore the relationship between speed, safety and geometry of roadways, I preparation to highways analysis and design. Although many of us are regular drivers, we rarely put much thought into roads. That’s on purpose. If you’re thinking about the roadway itself at all while you’re driving, it’s probably because it was poorly designed. There are so many factors that go into highway safety, many of which are more philosophical or psychological than pure physics and engineering. But to a certain extent, highway design is an art form.

Related OER: Road Diets: Designing a Safer Street (5:14 mins)

Adolfo Jayme Barrientos (July 19, 2018) Vox.com

Link: https://www.youtube.com/watch?v=Rs7jHvh7v-4

This enables students to consider safety criteria in engineering design of highways. Over the course of the 20th century, the car became America’s dominant mode of transportation. As vehicle miles travelled soared well past the rate of population growth, demands on the roadway surged. Congestion became a major issue. So transportation planners made the roads wider and added traffic lanes. Today, we now know that bigger roads and extra traffic lanes do nothing to solve congestion. In fact, it tends to induce even more traffic. So we didn’t fix the congestion issues, and on top of that, we built wide roads that are relatively unsafe. Transportation planners in the 21st century recognized that many of the roads that were overbuilt could be redesigned to calm speeding and add space for newer multimodal transportation options. And thus, the road diet was born. The video above explains why road diets are implemented, and how planners survey the feasibility of a lane reconfiguration. You can learn more about road diets with the following resources:

SAQ: Identify and describe at least five of the safety criteria in engineering design of highways, in Excel, using mobile phone

SAQ (Rubrics) ASAQ: 4 3 2 1

Identify & describe the safety criteria in highway engg design

Execute instructions in Excel

Mastery of table formatting functions

Upload student output in Google Classroom

Total Points:

UNIT 4 - GEOMETRIC DESIGN OF HIGHWAYS & RAILWAYS

Module 8 Highway Design of Horizontal Curve

Week 4: Sept 18, 2020 (Fri)

OER 1: Designing Horizontal Curves (11:40 mins)

Scott Peterson, Fresno State, Lyles College of Engineering (Sep 8, 2015)

Link: https://www.youtube.com/watch?v=vxHLFa1lj9w&t=89s

This shows students how to apply geometry fundamentals into design of curves in the horizontal plane to connect two straight tangent sections, say where two road alignments meet. Application in highways and railways design include survey layouts, route alignments and pipelines for drainage and sewers. Curves are simple, compound, broken-back, reverse, circular, double spiral and spiral between circular curves.

OER 2: Design a Widening Curve Problem (5:00 mins)

Sulaiman L Khan, Edgineer Boy, July 5, 2019 Link: https://www.youtube.com/watch?v=kbQ3LeWzTGs&t=140s

OER 3: How to Find Different Parts of a Horizontal Curve (6:11 mins)

Sulaiman L Khan, Edgineer Boy, July 5, 2019 Link: https://www.youtube.com/watch?v=TKTpK4lb12s

OER 4: Curve Layouting by Perpendicular Offsets from Tangent Lines (10:59)

Sulaiman L Khan, Edgineer Boy, July 5, 2019 Link: https://www.youtube.com/watch?v=4dzSUkDKDfU&t=201s

OER 5: Combined Road Curves (6:28)

Sulaiman L Khan, Edgineer Boy, Jan 31, 2019 Link: https://www.youtube.com/watch?v=kQhbW1i1V_o

SAQ: Draw the different geometric curves; Degree of Curve by Arc definition and by chord definition, in Excel; Compute for Parts of a Horizontal Curve; Curve Layout by Perpedicular Offsets from Tangent Lines

SAQ (Rubrics) ASAQ: 4 3 2 1

Describe Different Horizontal Curves, in Android Excel

Design a Widening Curve Problem, in Android Excel

Compute for the Parts of a Horizontal Curves, in Excel

Curve Layout by Perpendicular Offsets from Tangent Lines

Design Combined Road Curve in Android Excel

Total Points:

Module 9 Highway Design of Vertical Curves

Week 5, Sept 23, 2020 (Wed)

OER 1: Vertical Curves (10:11 mins)

Scott Peterson, Fresno State, Lyles College of Engineering (Sep 8, 2015) Link: https://www.youtube.com/watch?v=vxHLFa1lj9w&t=89s

This helps students to compute for vertical curves, like sag curves, crest curve and percentage grade

OER 2: Vertical Curves (8:21 mins)

Scott Peterson, Fresno State, Lyles College of Engineering (Sep 8, 2015) Link: https://www.youtube.com/watch?v=PMuTiHxUuM4&t=121s

This helps students to compute for vertical curve elevation calculations, rate of change of grade, percent grade

OER 3: Vertical Curves – Solving for Summit, Elevation & Grade of Curve (28:52)

Gillesania Engg Review and Training Center Link: https://www.youtube.com/watch?v=Qp0xGUmDa7M

OER 4: Elements of an Unsymmetrical Parabolic Curve (21:22)

Gillesania Engg Review and Training Center Link: https://www.youtube.com/watch?v=nx0JadEp1lc

SAQ: Compute for vertical curves, like sag curves, crest curve & percentage grade; for vertical curve elevation calculations, rate of change of grade, percent grade. Compute for the summit, elevation & grade of vertical curve; for elements of an unsymmetrical curve.

SAQ (Rubrics) ASAQ: 4 3 2 1

Compute for Vertical Curve, in Android Excel

Compute for Vertical Curve Elevation, Rate of change

Compute for Summit, Elevation & Grade of Vertical Curve

Compute for Elements of an Unsymmetrical Parabolic Curve

Total Points:

Week 5, Sept 25, 2020 (Fri) PRELIMINARY EXAMINATION PERIOD

Module 10 Highway Design of Superelevation

Week 6, Sept 30, 2020 (Wed)

OER 1: Superelevation Design in Highway Engineering (5:51 mins)

Civil Engineering – Shylus Updates, May 29, 2020 Link: https://www.youtube.com/watch?v=YmAZ5GWVEEk

This OER gives students a clear idea of the safety criteria of superelevation in highway design, to gain mastery of the concept by solving a sample problem

OER 2: Land Survey: Superelevation or Road Bending Formula Derivation (3:44 mins)

Sulaiman L. Khan, Engineer Boy (May 12, 2017) Link: https://www.youtube.com/watch?v=91QeF01KVZU&t=156s

OER 3: Superelevation in Road Design (4:36 mins) Link: https://www.youtube.com/watch?v=G5cUjWHNzGw&t=65s

SAQ: Compute for highway superelevation problems

SAQ (Rubrics) ASAQ: 4 3 2 1

Describe the safety design criteria of superelevation

Draw diagram and label important elements of superelvation

Compute Superelevation Problem, in Android Excel

Total Points:

Module 11 Sight Distance

Week 6, Oct 2, 2020 (Fri)

OER 1: Sight Distance (19:59 mins)

Principles of Transportation Engineering, Iowa State University Link: https://www.youtube.com/watch?v=0xwPILJUqsI&t=2s

This provides an overview of sight distance within the context of highways. It includes discussion of stopping sight distance (SSD), and decision sight distance (DSD). Details are provided as to the calculation of perception-reaction and braking distance

SAQ: Perform design computations for stopping sight distance, decision sight distance, perception reaction and braking distance

SAQ (Rubrics) ASAQ: 4 3 2 1

Compute for stopping sight distance (SSD)

Compute for decision sight distance (DSD)

Compute for perception reaction

Compute for braking distance

Total Points:

UNIT 5 - STRUCTURAL DESIGN OF RAILWAYS & PAVEMENT

Module 12 Structural Design of Road

Week 7, Oct 7, 2020 (Wed)

OER: Road Structure (5:51 mins)

Education for All, March 10, 2019

Link: https://www.youtube.com/watch?v=NtA_l9UeslQ

This explains about road structure. In road structures normally two types of roads are built. First type is flexible pavement and the other is rigid pavement. Flexible and rigid pavement has similar road layers. In rigid pavement we use concrete as surfacing layer whereas in flexible pavement we use bitumen as surfacing. Rigid pavement is normally used where water cross the road.

The other thing where we do not use rigid pavement is because cars and other traffic make noise while driving on rigid road. Flexible pavement absorb the traffic noise

OER: The Effect of Water on Soil Strength (6:08 mins)

Prof. John Burland, Expedition Workshed, Jan 22 2014 Link: https://www.youtube.com/watch?v=a-6YbkZJ5UY

This explains how important is pressure in the voids between soil particles is in determining the soil’s strength, and major disasters can occur when geotechnical engineers don’t take into account water pressure in soils

OER: Mechanically Stabilized Soil (7:52 mins)

Practical Engineering, May 16 216 Link: https://www.youtube.com/watch?v=0olpSN6_TCc

OER: Flexible Geocells for Gravel Surfaces Stabilization (2:34 mins)

DuPont Europe, Jul 5 2012 Link: https://www.youtube.com/watch?v=HfH3ZakV4z4

SAQ: Compute and Draw Diagram, applying learned geometric principles for the following: stopping sight distance (SSD); decision sight distance (DSD); perception reaction and braking distance. Perform in Android Excel using Mobile Phone

SAQ (Rubrics) ASAQ: 4 3 2 1

Compute for stopping sight distance (SSD)

Compute for decision sight distance (DSD)

Compute for perception reaction

Compute for braking distance

Total Points:

UNIT 6 - MAINTENANCE AND REHABILITATION

Module 13 Structural Design of Highway and Railway Stuctures

Week 7, Oct 9, 2020 (Fri)

OER: Concrete Bridge Repair w/ Fiber Reinforced Polymers (4:32)

Harken Production, March 29 2012

Link: https://www.youtube.com/watch?v=NSbpl9f0lO8

This shows repair and renovation of three different types of concrete bridge structures in New England. Carbon Wrap Solutions was chosen as the contractor for these repais by the Rhode Island and Massachusetts Department of Transportation. The solution repaired these bridges to the original bridge specifications using their proprietory materials and application process they developed.

OER: Structural Modelling of Suspension Bridges (7:01 mins)

Engineering Models, University of Waterloo, March 10, 2018 Link: https://www.youtube.com/watch?v=caTaBeKUh-U

OER: Arch Bridges and Chains (9:25 mins)

Engineering Models, University of Waterloo, March 10 2018 Link: https://www.youtube.com/watch?v=JlL6ZHChhQE

OER: Highway Tunnels and Culverts (2:32 mins)

Engineering Models, University of Waterloo, March 10 2018 Link: https://www.youtube.com/watch?v=62-pK2ISlv4

SAQ: Draw diagram, identify and label important componentsa, for your easy identification and locating them for highway and railways maintenance and rehabilitation

SAQ (Rubrics) ASAQ: 4 3 2 1

Structural Layout of Suspension Bridges

Structural Layout of Arch Bridges

Structural Layout of Highway & Railroad Tunnels

Structural Layout of Highway & Railroad Culverts

Total Points:

Module 14 Highway and Railroad Maintenance Process and Activities

Week 8, Oct 21, 2020 (Wed)

OER: Concrete Pavement Restoration – Type A Repairs (6:44 mins)

International Grovving Grinding Association, May 17 2012 Link: https://www.youtube.com/watch?v=tJSdI6y503c

This describes the procedures used by the Minnesota Department of Transportation. Referred to as Type A Repairs, this method involves sealing joints and cracks for concrete pavement rehab.

OER: Bridge Technologies Series: Replaceable Grouted External PT Tendons (6:39 mins)

US Department of Transportation FHWA, Sept 18 2018 Link: https://www.youtube.com/watch?v=N3j8ATiqcAs

This shows students the advantages of replaceable post-tension bridge tendons, including the ability to address unanticipated poor in-service performance and, in some cases, to provide additional structural capacity.

OER: Railroad Thermite Welding (3:48 mins)

Wolfgang Lendner, Storfors Sweden, Aug 7 2011 Link: https://www.youtube.com/watch?v=5uxsFglz2ig

Rail welding: Rail welds are a weak part in the rail network, where a high number of defects occur. Reducing the number of welds will thus reduce the risk of failure. Clearly, getting rid of all rail welds is impossible, since they are necessary to join the rails of a railway track. Therefore, an understanding of the characteristics of welds is essential. Welds contribute to track geometry irregularities mostly in the shortwave range. Due to this type of irregularities, high impact forces may arise because of passing trains. Dynamic contact forces may significantly affect the service life of the rails. We will further delve into the main types of welding, the mechanisms of surface degradation due to welding, and methods to prolong the service life of the rails.

OER: Hot-In-Place Asphalt Recycling (1:15 mins)

Woldpaving. Oct 7 2013

Link: https://www.youtube.com/watch?v=RsGDo0MmD2I

Shows a highway rehabilitation asphalt paving project in Waukesha County by Wolf Paving that partnered with Gallagher Asphalt

SAQ: Make a Word report describing highway and railroad maintenance process and activities, cut photos from your video files and place captions and labels of important process, components and equipment used

SAQ (Rubrics) ASAQ: 4 3 2 1

Highway concrete pavement restoration

Hot-in-Place Asphalt

Bridge repair and rehabilitation

Railway repair and rehabilitation

Total Points:

UNIT 7 – TRAFFIC ENGINEERING

Module 15 Traffic Modelling OD Trip Generation & Trip Distribution Analyses

Week 8: Oct 23, 2020 (Fri)

OER: Trip Generation and Trip Distribution (28:14 mins)

CE355 Principles of Transportation Engineering, Iowa State University, Aug 24 205 Link: https://www.youtube.com/watch?v=i6JsaC5Hxuk&t=5s

This video provides details of the first two steps of the traditional four-step travel demand model: (1) trip generation; and (2) trip distribution.

Under trip distribution, three methods for estimating the number of trips generated by a specific area or development type are covered. These methods include: (a) trip rates; (b) cross-classification; and (c) regression models.

For trip distribution, the Gravity model is introduced, which is the most commonly applied method for estimating inter- and intra-zonal trips based on travel times.

OER 1: Trip Generation: Cross Class Example (12:47 mins)

The Doctor Spring, Jan 27 2012 Link: https://www.youtube.com/watch?v=nnxwFnUgFhE&t=44s

This is a capability-building for students to perform (guided) simple trip generation, the first part of the traffic forecasting modelling, using the cross classification method, with a step-by-step procedure and example computation exerc

OER 1: Regression Analysis for Trip Generation Model

Riza Atiq Rahmat, Oct 12 2015 Link: https://www.youtube.com/watch?v=Ssp2tZKyiPY

This is a step by step guide to create a trip generation model using regression analysis and interpretation of data, and interpretation of regression analysis results

SAQ: Describe the trip generation modelling process, drawing a diagram, and mentioning important kinds of data to be considered. Perform a simple Trip Generation using the cross class example. Lastly, using the Excel table provided in this Learning Guide, perform the regression analysis by following the video, step-by-step, and follow the regression analysis process and interpretation of results, in Android excel

SAQ (Rubrics) ASAQ: 4 3 2 1

Write your philosophy about traffic/trip generation, in Word

Describe the Trip Generation Modelling Process, in Word

Draw Diagram showing inter-relationship of data, in Word

Perform the trip generation simple exercise, in Android Excel

Total Points:

Module 16 Modal Choice Analysis

Week 9, Oct 28, 2020 (Wed)

OER: Lecture on Model Choice (19:00)

CE355 Principles of Transportation Engineering, Aug 24 2015 Link: https://www.youtube.com/watch?v=ZFNX5vmC_Yk&t=2s

This video provides coverage of mode choice, the third step in the traditional four-step travel demand model. Four mode choice methods are introduced, that include: (1) direct generation models; (2) trip end models; (3) trip interchange models; and (4) logit models.

After this lecture, students should be able to: (a) describe the factors affecting mode choice; (b) identify appropriate mode choice models based on available data; (c) estimate modal split

Student will form philosophy about deision process by which the trips between traffic analysis zones (TAZ) in a study area (say, Antipolo) are allocated to available modes (say, via Ortigas, via Marcos Hiway or via Sumulong), and about what factors determine mode choice.

OER: Mode Choice: Practice Problem (7:57 mins)

Research Center for Integrated Transport Innovation, UNSW, May 6 2017 Link: https://www.youtube.com/watch?v=2s3NIZr0FE0

This was produced by UNSW in Sustainable Transport and Highway Engineeringto help students learn a little bit more about transportation planning, traffic engineering and designing the infrastructure that helps us move around the world. Students are guided to go through the application of Logit model to obtain an understanding of mode choice

SAQ: Follow a guided step-by-step process for Model Choice Analysis, then identify and describe important steps and factors to be considered, and formulas, explaining the required data and results

SAQ (Rubrics) ASAQ: 4 3 2 1

Identify and explain the steps of the model choice analysis

Identify what describe the factors and data used

Explain the important formulas used, data needed & results

Write philosophy using learned concepts on modal choice

Total Points:

Module 17 Trip Assignment Traffic Analysis

Week 9: Oct 30, 2020 (Fri)

OER: Lecture on Traffic Assignment (17:27 mins)

CE355 Principles of Transportation Engineering Link: https://www.youtube.com/watch?v=qjSLM3-ENxU&t=6s

This video provides details of traffic assignment, which is the final step of the traditional four-step travel demand model. Highway performance functions are introduced, which relate travel times to route volumes.

Two traffic assignment strategies are presented: (1) user equilibrium, under which all users attempt to minimize their own travel times; and (2) system optimality, under which the total system travel time is minimized.

Related OER: Trip Assignment (13:08 mins)

The Doctor Spring, Jan 27 2012 Link: https://www.youtube.com/watch?v=IeygbVGXOaA&t=88s

This is a capability-building for students to perform (guided) simple trip assignment, the last part of the traffic forecasting modelling, similar to what’s used in the popular travel aps Waze, with a step-by-step procedure and example computation exercise

SAQ: Perform the guided step-by-step exercise in Excel, using mobile phone. Draw diagram and label important components of a trip assignment table. And, write your own philosophy about trip assignments or assignment of trip routs used, say, by the poular travel aps Waze or Google Maps

SAQ (Rubrics) ASAQ: 4 3 2 1

Perform the guided trip assignment exercise, in Excel

Draw a Trip Assignment Table with labels,, in Word

Reflect and write your philosophy about trip assignment

Total Points:

Module 18 Traffic Characteristics: Speed, Flow and Density

Week 10: Nov 4, 2020 (Wed)

OER: Lecture on Traffic Characteristics: Speed, Flow & Density (27:27 mins)

CE355 Principles of Transportation Engineering Link: https://www.youtube.com/watch?v=G7qU7HOw9QA

This video provides an introduction to traffic characteristics used in transportation engineering practice. This includes time-mean speed, space-mean speed, flow, time headway, density, spacing, and occupancy. The interrelationships between these variables are detailed, including the fundamental relationship between speed, flow, and density; it enables student to explain and apply the traffic flow theory.

After this lecture, students should be able to: (1) describe and estimate traffic characteristics, including (a) time-mean speed and space-mean speed, (b) flow and (time) headway, (c) density and spacing (space headway), and (d) occupancy; and, (2) understand the fundamental relationship between flow, speed, and density

Related OER: Speed Studies (15:26 mins)

The Doctor Spring, Feb 13 2013 Link: https://www.youtube.com/watch?v=UGM0bYOdf3s&t=3s

SAQ: Follow the video presentation, make notes and answer multiple type questions.

SAQ (Rubrics) ASAQ: 4 3 2 1

Comprehension performance on Traffic Flow Theory

Comprehension on Traffic Stream Characteristics

Comprehension on Traffic Speed, Flow, Headway & Density

Comprehension on Survey/Measurement of Traffic Flow:

Perform Problem-Solving in Excel

Total Points

Module 19 Traffic Queue and Level of Service (LOS)

Week 10: Nov 6, 2020 (Fri)

OER: Lecture on Freeway Level of Service, LOS (26:24 mins)

CE355 Principles of Transportation Engineering Link: https://www.youtube.com/watch?v=IXYON4dauN4

This video provides an overview of level-of-service and capacity analyses for freeway facilities. This includes an introduction to the basic free segment analysis procedure from the 2010 Highway Capacity Manual.

After this lecture, students should be able to: (1) estimate the demand volume for a freeway, say, NLEX or SLEX; (2) estimate the free-flow speed of a freeway; (3) calculate the density of a freeway; and, (4) determine the capacity and level of service for freeways as per the Highway Capacity Manual

OER: Lecture on Two Lane Road Level of Service

CE355 Principles of Transportation Engineering Link: https://www.youtube.com/watch?v=QiaXErgNzc8&t=2s

This video provides an overview of level-of-service and capacity analyses for two-lane highways. This includes an introduction to the analysis procedure from the 2010 Highway Capacity Manual for Class I, Class II, and Class III highways.

After this lecture, students should be able to: (1) estimate the demand volume for a two-lane highway, say, M.L.Quezon Street, Antipolo City; (2) Field-adjust the measured free-flow speed for a two-lane highway if necessary; (3) Estimate the free-flow speed of two-lane highways; (4) Calculate the average travel speed, percent time spent following, and percent free-flow speed for a two-lane highway; and, (5) Determine the level of service for two-lane highways as per the Highway Capacity Manual

SAQ: Perform an analysis for the demand volume of a highway; Estimate its free flow speed; Calculate the density; determine the capacity and level of service as per the Highway Capacity Manual.

SAQ (Rubrics) ASAQ: 4 3 2 1

Perform highway analysis, in Excel in Mobile Phone:

Estimate the highway’s demand volume

Calculate the free flow speed

Calculate the % time-spent, % time-ffg & average speed

Determine the highway capacity & level of service

Total Points

Week 11: Nov 11, 2020 (Wed) MID-TERMS EXAMINATION PERIOD

Module 20 Traffic Measures for a Highway Intersection

Week 11: Nov 13, 2020 (Fri)

OER: Traffic Signal Design (26:24 mins)

CE355 Principles of Transportation Engineering, Link: https://www.youtube.com/watch?v=IXYON4dauN4

This video provides an overview of traffic signal design. This includes a discussion of types of traffic signal control, an introduction of key terminology, and demonstrations of how to calculate clearance intervals, saturation flow rate, and capacity.

After this lecture, students should be able to describe basic traffic signal concepts including: (1) Traffic signal warrants; (2) Delays at Traffic Signals; (3) Traffic signal control type; (4) Traffic signal phasing and timing plans; and, (5 Change and clearance interval calculations

OER: Queues Part 2: Signalized Intersection (8:03 mins)

The Doctor Spring, Feb 12 2014 Link: https://www.youtube.com/watch?v=dIy4je5lY2k&t=235s

This is a guided exercise of computing for a highway signalized intersection; given the flow, red cycle time, to find average queue length and average delay during one hour.

OER: Queues Part 3: Shockwaves (8:03 mins)

The Doctor Spring, Feb 12 2014 Link: https://www.youtube.com/watch?v=pp2QjkxoZzM&t=108s

This is a guided exercise if computing for the velocity of the backward forming shockwave, and for how long is the build-up at the end of red light.

SAQ: Perform a guided exercise in highway signalized intersection to compute for delays at traffic signals and traffic signal phasing and cycle time. Also, given the flow and red cycle time, compute for the average queue length and average delay during 1 hour. Finally, given a shockwave situation, compute for how long the build up at the end of red light.

SAQ (Rubrics) ASAQ: 4 3 2 1

Perform analysis of signalized intersection, in Excel

Compute for delays at signal signal phasing & red cycle time

Compute for avg queue length & avg delay in 1 hour

Compute for how long the build up at the end of red ligh

Draw diagram that best describes flow, queue & delays

Total Points

.

Module 21 Design Criteria for Different At-Grade & Grade-Separation in Major Highway Intersection

Week 12: Nov 18, 2020 (Wed)

OER: Types of Intersection (3:59 mins)

Civil Technology, Sept 2, 2019

Link: https://www.youtube.com/watch?v=W15761YzUN4

After this OER, students are able to identify, describe and draw diagrams of the different types or classifications of grade separated intersection. Popular grade separate intersections include: underpass; overpass; trumpet interchange; diamond interchange;

OER: At-Grade Intersections (7:36 mins)

Sangeetha Manikkara, Apr 17, 2020 Link: https://www.youtube.com/watch?v=kMc--tbsN-Y

After the OER, students are able to identify, describe and draw diagrams of at-grade intersections, as well as the factors to be considered in their engineering design. They’re either channelized (with islands for directing traffic) or non-channelised, depending on capacity. They’re also classification according to shape, as: square junction; skew or acute junction; T-junction; Y-junction; and, multiple junction. Rotary intersection, also called rotunda or roundabout, is a special type of at-grade intersection.

OER: The Benefits of a Continuous Flow Intersection (2:27 mins)

Dewberry, Apr 10, 2017 Link: https://www.youtube.com/watch?v=nU1WqciBKfE

Dewberry's Kevin Knudsen and Raymond Lee discuss the technology of a continuous flow intersection and why it's beneficial.

After this OER, students are able to formulate philosophies of at-grade intersection channelization, that’s cheaper than grade-separated.

OER: Left Turn Traffic Calming – Bike Island Channelization (0:15 mins)

NYC DOT, Nov 7, 2019 Link: https://www.youtube.com/watch?v=Pq6m-7iB8Ts

SAQ: Identify and describe at-grade and grade-separated intersections; give at least three examples each

SAQ (Rubrics) ASAQ: 4 3 2 1

Describe at-grade intersections, draw 3 examples

Describe grade-separated intersections, draw 3 examples

Write your philosophy of at-grade channelization criteria

Write your philosophy of grade-separated intersection

Total Points

UNIT 8 – ROAD TRAFFIC ANALYSIS

Module 22 Highway Traffic Volume Studies Week 12: Nov 20, 2020 (Fri)

OER: Highway Traffic Volume Studies (16:42 mins)

The Doctor Spring, Jan 23 2014 Link: https://www.youtube.com/watch?v=ui4UF5fkGQc&t=823s

This presents three important studies to collect data to decide what improvements to make, that’s independent of the project; collecting sample data from the population, and we’re interested on the population, not the sample. These are: (1) directional & lane distribution; (2) vehicle classifications; (3) turns; (4) vehicle occupancy. Also, there’s guided exercises for ADT (average daily traffic); AADT (annual average daily traffic); DHV (design hourly volume) and DDHV

OER: Highway Traffic Speed Studies (15:26 mins)

The Doctor Spring, Feb 13 2013 Link: https://www.youtube.com/watch?v=UGM0bYOdf3s&t=317s

This presents Spot Speed (Radar Gun), Travel Time and Delay. Spot Speed are for accident analysis (safety), design evaluation (control devices), enforcement and TCD. Travel Time and Delay are for route efficiency, problem area identification, effectiveness evaluation, and link times in planning models

Applications of Spot Speed includes establishing speed limits, enforcement, physical improvements and complaints evaluations and safety studies

SAQ: Determine sample size for say, limit acceptable error of 1.5 mph, 95% confidence interval, assuming SD of 5 mph as common assumption. Reports of results statistical summaries, frequency histogram, description of data and collection procedure.

SAQ (Rubrics) ASAQ: 4 3 2 1

Perform guided excel exercise on sample size

Perform guided excel on frequency histogram

Perform guided excel exercise on SD

Identify & describe impt data required for Spot Speed

Identify & describe impt data required for Travel Time Delay

Total Points

Module 23 Highway Traffic Volume Studies Week 13: Nov 25, 2020 (Wed)

OER: Highway Traffic Volume Studies (16:42 mins)

The Doctor Spring, Jan 23 2014 Link: https://www.youtube.com/watch?v=ui4UF5fkGQc&t=823s

This presents three important studies to collect data to decide what improvements to make, that’s independent of the project; collecting sample data from the population, and we’re interested on the population, not the sample. These are: (1) directional & lane distribution; (2) vehicle classifications; (3) turns; (4) vehicle occupancy. Also, there’s guided exercises for ADT (average daily traffic); AADT (annual average daily traffic); DHV (design hourly volume) and DDHV

OER: Presentation of Spot Speed Study Data (10:12 mins)

Asst Prof. Ashok Kumar, WIT Solapur – Professional Learning Community, Jan 16 2019 Link: https://www.youtube.com/watch?v=pv9HS7OOtHc

This has a guided exercise to help students construct speed distribution table, frequency distribution diagram and cumulative speed distribution diagram

SAQ: Construct speed distribution table, frequency distribution diagram and cumulative distribution diagram showing average speeds in mph for the 15th, 85th and 98th percentile

SAQ (Rubrics) ASAQ: 4 3 2 1

Perform guided exercise in Excel, given spot speed data

Construct speed distribution table

Construct frequency distribution diagram

Construct cumulative distribution diagram

Show avg speed in mph for 15th, 85th & 98th percentile

Total Points

Module 24 Expressway Capacity Analysis Week 13: Nov 27, 2020 (Fri)

OER: Expressway Capacity Analysis, Part 1 (14:38 mins)

The Doctor Spring, Feb 13 2014 Link: https://www.youtube.com/watch?v=6pElQQ6MRJk&t=24s

This shows test questions, history of the process of analyzing capacities and designing expressway, definitions and expressways scenarios. Importantly, historical reference provide the philosophy of why we do this and how we do this. Level of Service LOS was introduced in 1965 and still used today. 1972 came critical lane and 1985 came the modern tools and techniques.

After this lecture, students will be able to describe and use the terms: peak hour factor, basic section, highway capacity, ideal conditions, level of service, free flow speed and basic equations applying learned concepts on volume, density, flow speed

OER: Expressway Capacity Analysis, Part 1 (13:01 mins)

The Doctor Spring, Feb 13, 2014 Link: https://www.youtube.com/watch?v=MYF3gsrs77w&t=8s

This offers step-by-step guided exercises on how to assess or predict the performance of uninterrupted flow facilities using the Highway Capacity Manual, techniques that are applicable to expressways and multi-lane roads.

After this lecture, the students will be able to apply analysis equations, adjustment factors (like in, say, narrower lanes), FFS (estimated free flow speed), the HCM Model, speed vs volume chart, analysis and design methods

SAQ: Describe basic procedure for assessing existing facility. Identify and explain the analysis and design equations and data required. Find the highway LOS level of service using HCM table.

SAQ (Rubrics) ASAQ: 4 3 2 1

Perform guided analysis, given data for 4 lane expressway

Compute for heavy vehicle factor, fHV

Compute for the vehicle cars per lane, vp

Estimate the free flow speed, FFS

Compute for Density D, in vpm (vehicle per mile)

Using HCM Table, find the LOS corresponding to D

Total Points

Module 25 Expressway Capacity Analysis Week 14: Dec 2, 2020 (Wed)

OER 1: Expressway Capacity Analysis, Part 3 (13:31 mins)

The Doctor Spring, Feb 13, 2014 Link: https://www.youtube.com/watch?v=0ltGp1Ke3QM

While the previous exercise was a general flat terrain, this exercise calls for specific grades, influencing performance of trucks or vehicles (for 2 components, length & extent or steepness); ET changes, so FHV changes (ref to table for % Trucks)

SAQ: Perform guided exercise with changing “rolling terrain” to a 5% grade 3 miles long, at what level of service does the highway facilitiy now operate?

Then, a freeway section lies on a ¾ mile long grade of +4% and a ½ mile long grade of +5%. Find the equivalent grade for this combination

SAQ (Rubrics) ASAQ: 4 3 2 1

Perform guided analysis, given 5% grade 2 miles long

Using table provided, find resulting ET, then solve for fHV

Compute cars per lane, vp & check if it’s > that of level speed

Estimate the free flow speed, FFS

Compute for Density D, in vpm (vehicle per mile)

Using HCM Table, find the LOS corresponding to D

Total Points

OER 2: Expressway Capacity Analysis Exercise, Part 4 (4:39 mins)

The Doctor Spring, Feb 13, 2014 Link: https://www.youtube.com/watch?v=xdHNHNMk9HE&t=1s

This is a guided exercise, with non-ideal situation., and at LOS C, what Volume would cause that? What is the capacity for this road? That’s the density or D = vp/S. (Note: for LOS C, use S instead of FFS, to compute for D)

SAQ: It is proposed to build a 4 lane divided highway with 11 foot lanes and 8 foot shoulders on the grades described above. Interchanges 1 per mile. Ideal free flow speed is 70 mph. The expected flow speed is 70 mph. The expected traffic mix is 6% trucks and 5% buses. PHF = 0.75. Determine the DHV daily hourly volume at LOS level of service C.

ET=3.4 given (from Table 9.4, 5% - 1.25 miles, PT=11%.

SAQ (Rubrics) ASAQ: 4 3 2 1

Perform guided analysis, given 5% grade 2 miles long

Using table provided, find resulting ET, then solve for fHV

Compute cars per lane, vp & check if it’s > that of level speed

Estimate the free flow speed, FFS

Compute for Density D, in vpm (vehicle per mile)

Using HCM Table, find the LOS corresponding to D

Total Points

UNIT 9 – CONSTRUCTION MATERIALS & TESTING

Module 26 Organizing a Municipal Road Maintenance Process Week 14: Dec 4, 2020 (Fri)

OER: 21 Amazing Road Technologies (4:21 mins)

Interesting Engineering, June 12, 2020 Link: https://www.youtube.com/watch?v=xov0VmoPBFI

This helps students identify and describe recent technologies in road repair, maintenance and safety-improvements, as: (1) Rolling barrier system; (2) Direction arrows markings; (3) Self-inflating obstacles; (4) Raising concrete slabs; (5) Hole-covering contraption; (6) Road repair system; (7) Barrel mover; (8) Road zipper; (9) Ground stabilization system; (10) Detachable sweeper; (11) Machine lay paving; (12) Mud-turning tuck; (13) Plastic road installation; (14) Asphalt reparing system; (15) Smart manhole repairing; (16) Extruded Curb Machine; (17) Cone picker truck; (18) Road marking machine; (19) Asphalt heating underlay system; (20) Smart LED road crossing; and, (21) Asphalt patch system.

OER: Asphalt Quality Control (4:21 mins)

Plantmix Asphalt Industry of Kentucky Link: https://www.youtube.com/watch?v=T374R-0UfLw

A look at the technology and testing that lies behind the scenes of producing a quality road surface. Ensuring that the asphalt mix continually meets specifications really is an exact science.

SAQ: As many of the new road repair, maintenance and safety technologies were developed thru research and prototyping in universities, identify and described them

SAQ (Rubrics) ASAQ: 4 3 2 1

Identify and describe road repair innovations

Identify and describe road construction innovations

Identify and describe traffic safety innovations

Describe the asphalt quality control process shown you

Total Points

Module 27 Organizing a PNR/Lightrail Maintenance Process Week 15: Dec 9, 2020 (Wed)

OER: Railway Track Laying Machine renewing a high-speed railway line (7:32 mins)

HD1080ide, July 27, 2019 Link: https://www.youtube.com/watch?v=tMXfU8blPMM

This shows students how to conceptualize innovations in railway repair and maintenance

OER: Rail Grinding in Action – Rail Grinding Train Speno RR 32 M3 (3:01 mins)

HD1080ide, Dec 15, 2019 Link: https://www.youtube.com/watch?v=f2quMXvTP2s

Rail Grinder Speno RR 32 M-3 starts grinding some rails in Germany. Rail grinders are utilized to restore the profile and remove irregularities from worn tracks to extend its life and to improve the ride of trains using the track.

OER: Railway Ballast Cleaning Machine on a High-Speed Railway Line (5:28 mins)

HD1080ide Mar 6, 2020 Link: https://www.youtube.com/watch?v=zNFUgTJR6jw\

The RMW 1500 high capacity ballast cleaning machine from the manufacturer Plasser & Theurer was used in June 2019 on the high-speed railway line Hannover-Göttingen. The 150 meter long machine can clean up to 1,500 m³ of ballast per hour. The ballast is removed with a 35 cm high excavating chain. The clearing width can be set between 4.05 and 5.5 meters. The track bed cleaning machine was followed by a high output railway track laying machine, which renewed rails and sleepers

SAQ: Identify and describe innovations in railway track repair and maintenance shown in the videos

SAQ (Rubrics) ASAQ: 4 3 2 1

Describe new innovations shown in railway maintenance

Railway track laying

Railway rail grinding

Railway ballast cleaning

Railway track deep screening

Total Points

Week 15: Dec 11, 2020 (Fri) FINALS EXAMINATION PERIOD