![]() DSRC technology can send SPaT-based notices to drivers about vehicle speed. SPaT data can support limiting fuel consumption through eco-routing features and Eco-Approach and Departure (EAD) applications. This is especially important when buses are running late, as DSRC technology at intersections can help buses get back on schedule by holding green lights ( 2019-01349). By holding traffic lights on the green phase, the efficiency and reliability of the public transportation network can be improved. DSRC technology can adjust green light time. DSRC functionality has been successful, and there is room to improve safety applications that utilize DSRC ( 2014-00972). The United States Department of Transportation (USDOT) has field tested DSRC-based V2V and V2I initiatives for buses, including warnings regarding pedestrians in crosswalks and vehicles turning right in front of buses. Research shows that DSRC has the potential to prevent millions of crashes at intersections ( 2019-01354). Safety application developers can create new opportunities to improve vehicle safety at intersections using DSRC technology. Overall, the challenge provides a framework for DSRC deployment and creates future potential for the expansion of V2I infrastructure in transportation networks across the country. It sends a message of commitment to automobile manufacturers and application developers.īlue pins indicate operational SPaT deployments, while green pins indicate SPaT deployments that are underway.It will ensure promotion of future V21 deployments.It introduces state and local DOTs to DSRC-based V21 deployment and builds experience in procurement, licensing, installation, and operation.The Vehicle-to-Infrastructure (V2I) Deployment Coalition, made up of the American Association of State Highway Transportation Officials (AASHTO), the Institute of Transportation Engineers (ITE), and the Intelligent Transportation Society of America (ITS America) has outlined how the SPaT Challenge can serve transportation networks and expand potential for transportation technology development as follows: As of early 2020, 26 states have responded to the challenge, with over 2,000 total DSRC signals planned for installation through the end of the year. ![]() ![]() The V2I Deployment Coalition (now named the Cooperative Automated Vehicle (CAT) Coalition) announced the SPaT Challenge in 2016 as a call to state and local Departments of Transportation (DOTs) to integrate DSRC technology in approximately 20 intersections in all 50 states by 2020. DSRC allows an advanced level of detail in the data and accommodates the implementation of V2I safety applications that communicate signal timing for red and green lights to drivers. DSRC uses the Federal Communications Commission (FCC) regulated 5.9GHz band to establish vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) capabilities. ![]() They are typically installed by third party providers, who have influence in data sharing agreements.
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