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Restricted © Siemens Industry, Inc. 2013 All rights reserved. Answers for industry.
Siemens – Local Controller Software with Adaptive ControlEffective traffic control solutions
2014-06-26
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Page 2 Infrastructure and Cities / Mobility and Logistics / Intelligent Traffic Solutions
SEPAC 3.52/4.52 Controller Software
New Feature
• Performance Measurements
• SPaT
• Priority Control
• USB Support
2014-06-26
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Page 3 Infrastructure and Cities / Mobility and Logistics / Intelligent Traffic Solutions
SEPAC® 3.52/4.52 Performance Measurement
SEPAC Performance Logging is designed to capture internal and external controller events on a 1/10th second basis. It provides the logging abilities required by the Indiana Dept. of Transportation (InDOT).
2014-06-26
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Page 4 Infrastructure and Cities / Mobility and Logistics / Intelligent Traffic Solutions
SEPAC® 3.52/4.52 SPaT Messaging
SPaT – Signal Phase and Timing Data Messaging• Sends a UDP packet to the
configured Destination address every tenth of a second
• Each UDP packet shall include:a. The minimum time before the
phase will change to a different interval
b. The maximum time before the phase will change to a different interval
c. Current red, yellow or green status of each vehicle phase, pedestrian phase, and overlap
d. Intersection Statuse. Plan Number for TBCf. System Time
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SEPAC® 3.52/4.52 Priority Control
At the same time, keeping individual traffic flowing to avoid congestion, which causes a negative impact on the environment, is equally important.
Giving high priority to public transportation without interrupting the general traffic flow has been a major challenge for conventional traffic control software in the past.
Buses and light rail trains need to stay on schedule to make public transportation an attractive alternative to other means of transportation.
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SEPAC® 3.51 Enhances Performance of Traffic Signal Control
The latest version of the proven SEPAC traffic control software is focused on enhancing performance of traffic signal control for customers who use Light Rail Transit, Bus Rapid Transit and regular Traffic Signal Priority functionality.
A new set of features improves the use of partial and full priority, with minimal impact on pedestrian and vehicle traffic.
With more than 25 years of developing and testing, SEPAC is an unparalleled traffic signal priority software that enables mobility, safety and a better environment to help improve the quality of life in cities.
2014-06-26
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Page 7 Infrastructure and Cities / Mobility and Logistics / Intelligent Traffic Solutions
Increased Functionality to Meet Your Demanding Transportation Needs
4 phase banks
Advance warning flashers
Flashing left arrow with delay
Red protect collision avoidance
Bicycle detection and timing
Advanced pedestrian functionality
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Features
Phases Coordination Detection/Inputs
• 16 vehicle phases • 8 pedestrian phases • 4 phase banks • 4 timing rings • 15 alternate
sequences • 16 overlaps
• 6 modes of coordination
• Locally based traffic responsive routines
• 250 events • 5 modes for transition • 3 auxiliary and 8
special functions • 99 day and 10 week
programs • Free / flash / dimming • 16 phase function
maps
• 64 vehicle detectors* • 8 pedestrian detectors* • 8 system detectors* • Ethernet detection
interface for Sensys Ethernet Access Points (optional)
*80 total detectors defaulted to listed configuration but can be programmed as different types, if necessary.
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Modes of Operation
SEPAC’s traffic capabilities include five modes of operation that allow for Time of Day (TOD) operations, week plans, time of year or holiday plans, which include: coordination, free and flash functions. Modes include:
Standalone – All functionality is operational as a standalone unit. Time updates available through GPS syncs. Controller can be programmed to use the GPS output for keeping its internal TOD clock accurate.
1
Master Control – In conjunction with a Marc Master Controller, SEPAC will work within a closed loop system.
2
System Control – SEPAC has the ability to communicate to TACTICS® and operate under system control.
3
Manual – SEPAC can be controlled manually to run specific coordination routines when set to manual, including free operation.
4
Adaptive Control – SEPAC can accept commands from SCOOT® for adaptive control, if available.
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Compatible with Siemens Controllers
Designed for Siemens “M” series and Caltrans 2070 style controllers as well as ATC (Linux based) controllers
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Siemens Adaptive ControlEffective traffic control solutions
2014-06-26
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Page 12 Infrastructure and Cities / Mobility and Logistics / Intelligent Traffic Solutions
Current Traffic Landscape
• Annual delay per traveler increasing at a rapid pace
• Freeway usage is reaching peak capacity and spilling out onto arterials
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Congestion Impacts All of Our Lives
© Siemens AG 2011
• 80 billion tons of air pollution
• 170 billion gallons of excess gas
• Effects 33% of all accidents
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How Does Adaptive Control Work?
New timings are developed
4
Special tuning, weighting and logic is factored
3
Information input is placed into algorithms
2
Real time data collected
1
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Optimizing Signals Gives Added Benefit in Reducing Stops, Delays and Fuel Usage
• Achieves significant reductions in vehicle delay (21%), stops (25%), and fuel consumption (5%)
• 35% reduction in delays on a section of State Highway 6 in Houston, Texas
• $787,000 in benefits to the public for one year of operation in Bradenton, Florida
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Page 16 Infrastructure and Cities / Mobility and Logistics / Intelligent Traffic Solutions
• Siemens has two proven Adaptive Control systems to fit the unique needs of your city:
ACS Lite and SCOOT®
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Page 17 Infrastructure and Cities / Mobility and Logistics / Intelligent Traffic Solutions
ACS Lite
Adaptive Signal Coordination Software
2014-06-26
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ACS Lite Overview
• Adapts and optimizes the splits and offsets of signal control patterns/plans along an arterial application• Resulting in reduced delay, stops
and fuel consumption• Has flexibility to be deployed as an
on-street master or as a centralized system
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Siemens developed ACS Lite under contract to the Federal Highway Administration as a more accessible way to implement adaptive control• Low Cost Design – make it easy• Leverage existing infrastructure• Standard US-style actuated
controllers and logic (rings, phases, splits, barriers, gap-out/extension, etc.)
• Typical agency detector layouts• Typical communications• Use NTCIP• Promote efficiency
Goals of ACS Lite
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What Parameters Does it Adjust?
• Controllers use normal timing plans• ACS Lite changes splits and offsets
based on traffic demands• Cycle length is changed by
time-of-day (TOD)• Actuated logic and sequences
are used• Still use TOD changes
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Findings
An ACS Lite system can help to effectively reduce travel time on main street and queue length on side streets during peak periods, which in turn improves system efficiency, reduces emission and fuel consumption.
Up to 32% reduction in travel time on newly time signals
Average of 20% reduction in side street queues
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Ann Arundel County, MarylandUse Case
Annapolis, Maryland area experienced significant traffic changes
Results
• Test showed 82% improvement in afternoon peek travel times
• Overall delays reduced by 26%
• Expanding system to other corridors
Implementation
• 12 Intersections on Riva Road
• Project Costs: $141,000
From “The Capital” Newspaper article 8/17/2011
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Use CaseA Unique System for Tyler, Texas
Growing traffic delays are ranked as the #1 concern in Tyler, similar to many other towns in the U.S.• Signal timing plans do not get
updated frequently enough• Corridor traffic flows smoothly at
peak times, but there are unpredictable off-peak periods due to commercial nature of corridor
• Traditional timing plans are weak• Offsets change during traffic or
weather events
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Page 24 Infrastructure and Cities / Mobility and Logistics / Intelligent Traffic Solutions
SCOOT®Performance You Can See…
Adaptive Signal Coordination Software
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• SCOOT ® is an Adaptive Control engineering TOOL that can handle virtually any type of application
2014-06-26
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Page 26 Infrastructure and Cities / Mobility and Logistics / Intelligent Traffic Solutions
Toronto
London
Anaheim
Santiago
Sao Paulo
Bahrain
Beijing
Dalian
Durban
Port Elizabeth
Dubai
Arlington CountyMinneapolis
Santa Barbara Orange County
Cartagena
Qingdao
Chongqing
Chengdu
Cyprus
SCOOT® Worldwide Adaptive Control
200 systems worldwide
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Page 27 Infrastructure and Cities / Mobility and Logistics / Intelligent Traffic Solutions
Traffic Control Functions• Time-of-day control• Traffic responsive control• Quick response• User interface to
TACTICS and SCOOT• The SCOOT server,
via its scheduler, turns SCOOT on and off for the selected intersections. Once the EPAC controller receives the SCOOT commands over its communication channel, it responds. SCOOT control is dropped after 3 seconds of no SCOOT commands.
SCOOT® System Architecture
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Orange County, FloridaUse Case
Benefits• Projected annual savings of
$400,000• Convention Center traffic
ingress & egress has been cleared efficiently
• Overall travel times and delays have been reduced
• Officer control of signals is no longer necessary
• Regular development and update of timing plans is not necessary
• Timing adjustment during long or short term lane closures is not necessary
• Real-time traffic data are monitored and archived
Implementation• Phase I – International Drive• Phase II – Added intersections
toward Disney World• Phase III – Corridor approaching
University of Central Florida• Phase IV – UCF Campus• Uses TACTICS® and SCOOT®
in parallel
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University of MinnesotaUse Case
Results• Study to be completed soon• General positive results• Siemens added additional
detection capability for complex intersection
Implementation• Installed in University Of
Minnesota area• 39 intersections in grid with
extended major corridors• Includes traffic circle• Adding additional intersections
in Phase II
2014-06-26
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Thank You for Your Attention!
Daniel K. Nelson, P.E.PLM Product ManagerSenior Applications EngineerMobile: +1 (512) 415-4284Tel.: +1 (512) [email protected]
Siemens Industry, Inc.8004 Cameron RdAustin, TX 78754