Congestion Mitigation and Air Quality Improvement (CMAQ) Program

Intelligent Transportation Systems (ITS)

FHWA-HEP-18-015

Intelligent transportations systems (ITS), including vehicle-to-infrastructure technology (V2I), are a combination of computer and communication technologies, as well as institutional partnerships. ITS can be effective in relieving traffic congestion, enhancing transit bus performance and enhancing air quality. ITS projects improve traffic flow characteristics, such as speed; improved traffic flow can reduce emissions rates in many situations.

Eligible ITS and V2I Technology

Traffic monitoring through detectors and closed circuit video equipment
Traffic management through computerized traffic signal timing
Freeway and transit management systems
Regional transportation management centers
Provision of real-time information to travelers
511 telephone services and websites
Road weather information systems
Traffic incident and work zone management programs
Other devices that are used to manage, monitor, and control traffic with the goal of improving traffic flow
Installation of V2I communication equipment

Examples of Successful ITS/V2I Projects

Cincinnati, OH: The Advanced Regional Traffic Interactive Management and Information System (ARTIMIS) is a transportation system management project designed to improve traffic flow. It was put in place by the Ohio-Kentucky-Indiana (OKI) Council of Governments to monitor and control traffic on 88 miles of regional freeways at a total cost of $57 million, of which $41 million were CMAQ funds.

Estimated emission reductions: 186 kg/day of VOC

Philadelphia, PA: The Arterial Street Signal Interconnect is an interconnection of traffic signals along arterials with high transit use implemented to improve traffic flow and to enhance transit quality. The total annual project cost was $214,033, of which $171,227 were CMAQ funds.

Estimated emission reductions: 52 kg/day VOC and 5.7 kg/day NOx

Atlanta, GA: The Georgia NAVIGATOR is an Advanced Transportation Management System that monitors and manages traffic conditions on 90 miles of interstate highway in the Atlanta metropolitan area. The system was developed at a total cost of $140 million, of which $54 million were CMAQ funds.

Estimated emission reductions: 614 kg/day VOC and 578 kg/day NOx

For more information, please contact:
U.S. Department of Transportation Federal Highway Administration
Office of Natural Environment
1200 New Jersey Avenue, S.E.
Washington, D.C. 20590
202-366-4053
http://www.fhwa.dot.gov/environment/air_quality/cmaq/