Automated Intersection Control Performance of Future Innovation Versus Current Traffic Signal Control
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- Automated Intersection Control Performance of Future Innovation Versus Current Traffic Signal Control
- Fajardo, David; Au, Tsz-Chiu; Waller, S. Travis; Stone, Peter; Yang, David
- Issue Date
- NATL ACAD SCIENCES
- TRANSPORTATION RESEARCH RECORD, v.2259, pp.223 - 232
- Congestion is one of the biggest challenges faced by the transportation community; congestion accounted for an estimated $87.2 billion in losses in 2007 alone. Transportation professionals need to go beyond capacity expansion projects and explore novel strategies to mitigate traffic congestion. Automated intersection management is a novel strategy that has the potential to greatly reduce intersection delay and improve safety. Although the implementation of such a system is contingent on the development of automated vehicles, competitions such as the Grand Challenge and Urban Challenge of the Defense Advanced Research Projects Agency have shown that this technology is feasible and will be available. Therefore, the development of the infrastructure and associated control methods required to exploit fully the benefits of such technology at the system level is critical. This research explores one such innovative strategy, an automated intersection control protocol based on a first-come, first-served (FCFS) reservation system. The FCFS reservation system was shown to reduce intersection delay significantly by exploiting the features of autonomous vehicles. Microscopic simulation experimental results showed that the FCFS reservation system significantly outperformed a traditional traffic signal in reducing delay.
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