ITS and Sustainability

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Louis Neudorff, P.E.

Sustainability has three parts:

§  Environmental Protection (Green) §  Economic Sustainability (Mobility and Reliability) §  Social (Safety and Human Values)

“Mee$ng,  and  some$mes  re-­‐defining,  the  mobility  needs  of  the  present  without  compromising  the  ability  of  future  genera$ons  to  meet  their  needs”.  

o ITS  America  Policy  Statement  on  Sustainable  Transporta$on  

Transportation Systems Management & Operations §  Integrated Corridor

Management (ICM) §  Active Traffic Management

(ATM) / Managed Motorways §  Managed Lanes (HOV, HOT) §  Regional Coordination §  Multi- Modal Traveler

Information

§  Coordinated Traffic Signal Timing/ Adaptive Control

§  Transit Enhancements (Bus Rapid Transit and signal priority)

§  Incident & Emergency Management

§  Ramp Management §  Road Weather Management  

Existing & Emerging Strategies Supported by ITS Technologies

•  Manage Congestion / Increase Reliability – Economic Sustainability •  Enhance Safety / Reduce Crashes – Social Sustainability •  Reduce Stops & VHT (Emissions) – Environmental Sustainability

Integrated Corridor Management §  ICM - “Operational coordination of multiple

transportation networks and cross-network connections comprising a corridor, and the coordination of institutions responsible for corridor mobility”

§  Integration –  Operational –  Technical –  Institutional

§  Pro-active

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City 2 – Traffic Signal System

City 1 – Traffic Signal System

Bus Company – AVL system

State DOT – Freeway Management System

Regional Rail Agency – Train Management System

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City 2 – Traffic Signal System

City 1 – Traffic Signal System

Bus Company – AVL system

State DOT – Freeway Management System

Regional Rail Agency – Train Management System

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Integrated  Corridor  Management  

Active Traffic Management §  Variable Speed Displays §  Dynamic Lane Assignment §  Queue Warning §  Operated in real time

based on current conditions

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TSMO Strategies / ITS and GHG Reductions

0

100

200

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400

500

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700

800

900

1000

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90

Average Speed (mph)

CO 2

(g/m

i)

Real-world activitySteady-state activity

congestion mitigation

speed management

traffic smoothing

(Thanks to Matt Barth – UCal Riverside for the graph)

ATM – Hard Shoulder Running

Managed Lanes – HOT / Express Toll §  High‐occupancy/Toll (HOT)

lanes –  Non-HOV vehicles can use

HOV lanes by paying toll •  Toll is varied based on

average speed •  No less than 45 mph 90%

of the time

§  Express toll lanes –  All vehicles are charged toll

(variable)to use the lane(s).

Connected Vehicle •  Vehicle to Vehicle (V2V)

Communications for Safety

•  Vehicle to Infrastructure (V2I) Communications

•  Real-Time Data Capture and Management

•  Applications for the Environment: Real-Time Information Synthesis (AERIS)

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Other ITS Considerations for Sustainable Transport §  Support of Eco-driving

§  Performance Measures

–  Recent MAP 21 Legislation

§  Adaptation

§  Pricing (VMT Reduction)

§  Road Usage Charging (Financial Sustainability)