traffic control planning and layout. slide 2 © course introduction unit 1 -complying with...
TRANSCRIPT
Traffic Control Planning and Layout
Traffic Control Planning and Layout
Slide 2 ©
Course Introduction
Unit 1 - Complying with Regulations and Standards
Unit 2 - Traffic Control Devices and TCP’s
Unit 3 - Planning and Setting Up Work Zones
Assessment and Evaluation
AgendaAgenda
Slide 3 ©
WorksafeBC Occupational Health and Safety Regulation
The Traffic Control Manual for Work on Roadways (the Manual)
The Motor Vehicle Act
ReferencesReferences
Slide 4 ©
Learning ObjectivesLearning Objectives
Use the OHS Regulation and T.C. Manual for Work on Roadways to make planning and layout decisions
Identify, use and maintain traffic control devices
Create a Traffic Control Plan for any work on roadways
Lay out a work zone where TCPs are required
Lay out a work zone where TCPs are not required
…Continued
Slide 5 ©
…Learning Objectives Continued
…Learning Objectives Continued
Adapt a Traffic Control Plan based on actual situation
Monitor traffic control in a work zone to ensure optimal safety
Work with the site superintendent, contractors or other municipal representatives to ensure traffic control issues are understood and site safety is optimized
Slide 6 ©
Complying with Regulations and Standards
Unit 1
Slide 7 ©
Unit 1 Learning ObjectivesUnit 1 Learning Objectives
To use the WorksafeBC Regulation and guidelines and Traffic Control Manual for Work on Roadways to make planning and layout decisions.
Participant Guide 1-3
Slide 8 ©
Traffic ControlTraffic Control
Worker’s Compensation Act
Worker’s Compensation Act
Occupational Health and Safety
Regulation (“The Regs.”)
Occupational Health and Safety
Regulation (“The Regs.”)
Guidelines and Standards
Guidelines and Standards
Traffic Control Manual for Work
On Roadways (“the Manual”)
Traffic Control Manual for Work
On Roadways (“the Manual”)
WorkSafeBCWorkSafeBC MOTMOT
Regulations and Standards
Regulations and Standards
Motor Vehicle Act and Reg.
Motor Vehicle Act and Reg.
Participant Guide 1-3
Slide 9 ©
OH&S RegulationOH&S Regulation
WorkSafeBC operates under the Authority of the Workers’ Compensation Act
Regulations for traffic control Part 18
Guidelines provide interpretations for Part 18
Regulations refer to Traffic Control Manual for Work on Roadways (18.3)
Participant Guide 1-3
Slide 10 ©
Key Points to RegulationKey Points to Regulation
Definitions
• “Traffic control”
• “Traffic control person” or “TCP”
• “Supervisor”
Responsibility
OH&S regulation takes precedence
Participant Guide 1-4
Slide 11 ©
Traffic Control SupervisionTraffic Control Supervision
Regulation 18.4 states that a supervisor must be designated to ensure traffic control arrangements and procedures are implemented and requirements met
Purpose of 18.4(2) is to ensure responsibility for supervision for traffic control operations is clearly established
Participant Guide 1-5
Slide 12 ©
Motor Vehicle ActMotor Vehicle Act
MVA regulates the movement of motor vehicles and pedestrians on public roads
MVA and regulations give authority for the placement of traffic control devices
Participant Guide 1-5
Slide 13 ©
Traffic Control StandardsTraffic Control Standards
Developed by Ministry of TransportationWorkSafeBC has adopted TCM as a standardOffice Edition & Field Edition5 Chapters
1 General Instructions2 Traffic Control Devices3 Typical Traffic Control Layouts – Short Duration4 Typical Traffic Control Layouts – Long Duration 5 Typical Traffic Control Layouts – Freeways Appendices
Participant Guide 1-6
Slide 14 ©
Traffic Control Manual – Key Definitions (TCM pg 1.1.2)
Traffic Control Manual – Key Definitions (TCM pg 1.1.2)
Long Duration Work – night time work or more than one daytime shift
Short Duration Work – not more than one daytime shift
Brief Duration Work – emergency, unprogrammed, 15 min or less
Participant Guide 1-6
Slide 15 ©
Traffic Control Devices and Traffic Control Persons
Unit 2
Slide 16 ©
Unit 2 Learning ObjectivesUnit 2 Learning Objectives
Identify traffic control devices
Selecting correct traffic control devices
Maintenance of traffic control devices
Determining when TCP are required
Conducting a job task analysis
Participant Guide 2-3
Slide 17 ©
Traffic Control DevicesTraffic Control Devices
All devices must meet 5 requirements:
Fulfill a need
Command Attention
Convey a clear, simple meaning
Provide adequate time for a proper response
Command respect of road users
Participant Guide 2-3
Slide 18 ©
Traffic Signs (TCM 2.2.1)Traffic Signs (TCM 2.2.1)
Three types:Construction Maintenance (2.1.3.2)
• Contain both regulatory and warning types
Temporary Warning (2.1.3.2)• Warn public and traffic of hazards• Black on orange
Regulatory (2.1.3.3)• Impose legal requirements• Black on white
Participant Guide 2-4
Slide 19 ©
Channelizing Devices (TCM 2.2.2)Channelizing Devices (TCM 2.2.2)
Six types:
Flexible drums
Cones
Temporary delineator posts
Barricades
Barriers
Tubular markers
Slide 20 ©
Lighting Devices (TCM 2.2.3)Lighting Devices (TCM 2.2.3)
Five types:
Flashing yellow warning lights
Flashing vehicle lights
Flashing arrow boards
Floodlights
Steady burn warning lights
Slide 21 ©
Other Devices (TCM 2.2.4)Other Devices (TCM 2.2.4)
Buffer and shadow vehicles
• Used to help protect workers
High level warning devices
• Used in daylight only, most often in urban and rural areas
Flags
• Required in speed zones >70km/h for temporary signs (C-4, C-36, C-58)
Slide 22 ©
Maintaining DevicesMaintaining Devices
Inspect and do not use devices that are:
Dirty, worn
Out of date/not up to standard
Dented or damaged
Worn or deteriorating
Participant Guide 2-7
Slide 23 ©
When to Use TCPsWhen to Use TCPs
Refer to WorksafeBC Regulation 18.6
Conduct a Job Task Analysis to determine the level of training required for TCPs at the site
Participant Guide 2-8
Slide 24 ©
Planning and Laying Out Work Zones
Unit 3
Slide 25 ©
Unit 3 ObjectivesUnit 3 Objectives
Create a traffic control plan for work on roadways
Lay out a work zone, with TCP or without
Adapt a traffic control plan based on an actual situation
Evaluate traffic control for effectiveness
Work with all parties to ensure site safety is optimized
Participant Guide 3-3
Slide 26 ©
Fundamental Principles (TCM 1.1.1)
Fundamental Principles (TCM 1.1.1)
1. Plan construction, maintenance and utility work with the safety of road users, pedestrians and workers in mind.
2. Traffic movement should be inhibited as little as possible.
3. Guide motorists in a clear and positive manner while they approach and go through work zones.
…Continued
Participant Guide 3-3
Slide 27 ©
…Principles Continued…Principles Continued
4. Perform routine inspections of traffic control devices.
5. Roadside safety requires constant attention during the life of the work zone because of the potential increase in hazards.
Slide 28 ©
Traffic Control PlanTraffic Control Plan
A written plan is recommended
Helps you to plan properly
Helps to coordinate all site activities
Helps you to communicate with workers and contractors
Is a record of what you did
Useful document when something goes wrong
Use the correct template (your employer’s)
Participant Guide 3-4
Slide 29 ©
Parts of a Work ZoneParts of a Work Zone
Transition Area
Participant Guide 3-6
Termination Area
Work Area
Advance Warning Area
Buffer Space
Slide 30 ©
Advance Warning AreaAdvance Warning Area
Tells motorists what to expect before they reach the work zone
Gives enough time to adjust driving in response to the warning signs
Participant Guide 3-7
Slide 31 ©
Transition AreaTransition Area
Contains the tapers to close off the lane or lanes where the work is
Participant Guide 3-7
Slide 32 ©
Buffer SpaceBuffer Space
Between the Transition Area and the Work Area
If distance permits, include a Buffer Space even when it may not appear to be necessary
Helps to make the worksite safer for workers and motorists
Participant Guide 3-8
Slide 33 ©
Work AreaWork Area
Area of the roadway or shoulder where the work is being done (closed to vehicle traffic and pedestrians)
May remain in one place or move, depending on the type of job
Participant Guide 3-8
Slide 34 ©
Termination AreaTermination Area
Provides a short distance beyond the Work Area for the traffic to return to its normal lane or lanes
Participant Guide 3-9
Slide 35 ©
Work Zone PlanningWork Zone Planning
The main factors to be considered when selecting a work zone layout include:
• Duration or type of project
• Road configurations
• Traffic variations
• Environmental conditions
• Worksite variations
• Principles in T.C. Manual
• Figures in T.C. Manual
Participant Guide 3-9
Slide 36 ©
Table A Explained! Table A Explained!Minimum meters it takes to lay out taper - normal
lane width /no TCP
Minimum meters it takes to lay out taper - normal
lane width /no TCP
Move the taper one meter into the lane every __ meters
Move the taper one meter into the lane every __ meters
Place cones or markers every __ meters (Max) for 1a
Place cones or markers every __ meters (Max) for 1a
Tangent is the distance between the end of one taper and the beginning of the next
(same direction of travel)
Tangent is the distance between the end of one taper and the beginning of the next
(same direction of travel)
Right now, Table A is the same for short and long duration work
Right now, Table A is the same for short and long duration work
For shoulder work or with TCPs
For shoulder work or with TCPs
30
Space between signs depends on speed
Space between signs depends on speed
10
Traffic Control Manual – Chapter 3
Traffic Control Manual – Chapter 3
Slide 37 ©
At 50 km/hr (min 3 cones)
At 100 km/hr(min 3 markers)
Lane Closure Tapers with TCP or Work on ShoulderLane Closure Tapers with TCP or Work on Shoulder
Note: this example is for daytime, short duration (Table A) Not to Scale
0 5 m 10 m 15 m
1m
2m
3m
1m
2m
3m
Slide 38 ©
At 50 km/hr the taper ratio is
1:10
At 100 km/hr, the taper ratio
is 1:30
Lane Closure Tapers No TCPLane Closure Tapers No TCP
Note: this example is for daytime, short duration (Table A) Not to Scale
10 m 20 m 30 m0
1m
2m
3m
1m
2m
3m
Slide 39 ©
Lane Closure TaperLane Closure Taper
If drivers’ sight is restricted (e.g., a sharp vertical or horizontal curve), taper should begin well in advance of the sight restriction. The beginning of a taper should not be hidden downstream of curves.
Generally, tapers with no TCPs should be lengthened, not shortened, to increase their effectiveness.
Slide 40 ©
Traffic Control Devices - Placement Order
Traffic Control Devices - Placement Order
Devices should be placed in the order that drivers will encounter them, starting with the sign or device furthest “upstream” from the Work Area and others successively as the work area is approached
Other guidelines participants manual 3.6.4
Participant Guide 3-15
Slide 41 ©
Traffic FlowTraffic Flow
Watch traffic to see if the taper is working correctly. Frequent use of brakes and skid marks my mean the taper is too short or the advance warning is inadequate.
Long line-ups of vehicles will create frustration and may block other traffic flow
Slide 42 ©
Sample Figures from Chapter 3Short Duration Work
Slide 43 ©
Chapter 3 - Short Duration
Slide 44 ©
Chapter 3 - Short Duration
Slide 45 ©
Chapter 3 - Short Duration
Participant Guide 3-17
Slide 46 ©
Chapter 3 - Short Duration
Participant Guide 3-17
Slide 47 ©
Chapter 3 - Short Duration
Slide 48 ©
Chapter 3 - Short Duration
Slide 49 ©
Chapter 3 - Short Duration
Slide 50 ©
Chapter 3 - Short Duration
Slide 51 ©
Sample Figures from Chapter 4Long Duration Work
Slide 52 ©
Chapter 4 - Long Duration
Slide 53 ©
Chapter 4 - Long Duration
Slide 54 ©
Chapter 4 - Long Duration
Slide 55 ©
Chapter 4 - Long Duration
Slide 56 ©
Sample Figures from Chapter 5Freeways
Slide 57 ©
Freeway WorkFreeway Work
Use Table B in Chapter 5
Note special requirements for size of signs
Appendices
Slide 58 ©
Maintaining a Work ZoneMaintaining a Work Zone
• Traffic accidents
• Displaced or damaged devices
• Dead or low batteries or bulbs
Regularly check equipment and placement for changes due to:
• Low fuel levels for generators
• wear and tear
• Dirt or snow on devices
• Vandalism or theft
Participant Guide 3-18
Slide 59 ©
Removing a Work ZoneRemoving a Work Zone
As soon as the work is completed and traffic control devices are no longer needed, they must be removed
Follow safe removal procedure depending on traffic volume
Participant Guide 3-19
Slide 60 ©
SummarySummary
Follow the Traffic Control Manual, or improve upon it with good reason
Traffic control is critically important
Must have a Traffic Control Supervisor
Must do a Job Task Analysis
Traffic Control Plan is Recommended
You must constantly maintain the traffic control in the Work Zone
Do not use TCPs unless you need them
Slide 61 ©
Exercises
Slide 62 ©
Exercise 1 - Municipal Scenarios
Exercise 1 - Municipal Scenarios
For the following scenarios use the Traffic Control Manual to identify what diagram most closely resembles what you would use when determining the traffic control layout.
Slide 63 ©
Municipal Scenario 1Municipal Scenario 1
Job Task: Hydrant Maintenance
Utilities crew is parked on a residential road while performing maintenance on a fire hydrant.
The job is expected to take more than 30 minutes
Speed limit 50 km/h
Road is low volume with no center line
Slide 64 ©
Correct Setup For Scenario 1
Correct Setup For Scenario 1
4* 1b*
C-4
C-4
4*
MAR. 95
1b*
5.5 mminimum
Slide 65 ©
Municipal Scenario 2Municipal Scenario 2
Job Task: Flower Bed Maintenance
Parks crew is shoveling bark mulch into a flower bed from a truck parked in the inside lane of a multilane roadway.
The job is expected to take more than 30 minutes
Speed limit 50 km/h
Road is low volume with no center line
Slide 66 ©
Correct Setup For Scenario 2
Correct Setup For Scenario 2
SE
E T
AB
LE A
Figure 3.4.4 Left Lane Closed D Multilane Roadway
¥ See footnotes for Figure 3.4.3
Slide 67 ©
Municipal Scenario 3Municipal Scenario 3
Job Task: Asphalt Repair
Roads crew is performing asphalt repair.
One lane is closed on a two lane two way road near a curve
The job is expected to take more than 30 minutes
Speed limit 50 km/h
Road is high volume
Slide 68 ©
SE
E T
AB
LE A
Figure 3.4.1 Lane Closure with TCPs D Two Lane Two-way Roadway
Correct Setup For Scenario 3
Correct Setup For Scenario 3
Slide 69 ©
Municipal Scenario 4Municipal Scenario 4
Job Task: Traffic Signal Lamp Replacement
A crew is replacing lamps in an overhead signal at an intersection using a bucket truck
The job is expected to take more than 30 minutes
Speed limit 50 km/h
Road is a multilane roadway
Slide 70 ©
Correct Setup For Scenario 4
Correct Setup For Scenario 4
SE
E T
AB
LE A
Figure 3.9.2 Traffic Signal Relamping or Overhead Utility Work
Slide 71 ©
Exercise 2 – Traffic Control Plans
Exercise 2 – Traffic Control Plans
Complete a Traffic Control Plan for the following scenario using the blank Traffic Control Plan in Appendix 2 and the blank Scenario on page 4-3 of the Participant Guide
Slide 72 ©
Job Task: Mow and hand cut grass
A crew is mowing and hand cutting grass from the boulevard to the fence line
The job is expected to take more than 30 minutes
Speed limit 70 km/h
Road is a multilane roadway
Exercise 2 – Traffic Control Plans
Exercise 2 – Traffic Control Plans
Slide 73 ©
Traffic Control PlanTraffic Control Plan
Bullcrew Truck F.A.B.
Cones Type C@ 1.0m intervals
Eastbound
Westbound
TW-61R
80m 80m
TW-61R
80m
C-32 C-4
Slide 74 ©
QuestionsQuestions
Slide 75 ©
Theory QuizTheory Quiz
THE ENDTHE END