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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

Restricted © Siemens Industry, Inc. 2014 All rights reserved.

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



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



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

2014-06-26



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.

2014-06-26



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



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

2014-06-26



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.

2014-06-26



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.

5

2014-06-26



Compatible with Siemens Controllers

Designed for Siemens “M” series and Caltrans 2070 style controllers as well as ATC (Linux based) controllers

Restricted © Siemens Industry, Inc. 2013 All rights reserved. Answers for industry.

Siemens Adaptive ControlEffective traffic control solutions

2014-06-26



Current Traffic Landscape

• Annual delay per traveler increasing at a rapid pace

• Freeway usage is reaching peak capacity and spilling out onto arterials

2014-06-26



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

Rames, Amy

I think it would be a good idea to keep this one. do you know the source?Also, what does GNP stand for?

2014-06-26



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

Rames, Amy

Do you have any screenshots? Would that work best for this slide? If not, please provide a sketch that depicts this and I can submit to our graphic artist.

2014-06-26



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

2014-06-26



• Siemens has two proven Adaptive Control systems to fit the unique needs of your city:

ACS Lite and SCOOT®

2014-06-26



ACS Lite

Adaptive Signal Coordination Software

2014-06-26



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

2014-06-26



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

2014-06-26



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

Rames, Amy

lots of acrynims--should we write it all out?

2014-06-26



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

Rames, Amy

Are these findings from the GA case study? If so, it should be put in the headline.

2014-06-26



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

Rames, Amy

In this use study, include information on why they decided to implement adaptive and what their goals wereExpand the bullet that says "Serial Communication"

2014-06-26



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

2014-06-26



SCOOT®Performance You Can See…

Adaptive Signal Coordination Software

2014-06-26



• SCOOT ® is an Adaptive Control engineering TOOL that can handle virtually any type of application

2014-06-26



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

2014-06-26



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

2014-06-26



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

2014-06-26



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

Rames, Amy

Why did they implement the system? were they having a problem? what benefits did they find? how did this system solve their problem?

2014-06-26



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

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