01764369

Component

https://annualmeeting.myt...nlineProgram/Details/15755

Signal re-timing has been noted as an important means to improve urban arterial operations. However, most agencies in the U.S. have difficulties in keeping their signal timings up to date due to tight resourcing and staffing. One of the challenges the agencies have faced lies in data collection processes during signal timing that are often costly and laborious. This research aims to provide an alternative method to re-time traffic signals with reduced costs, which is based on leveraging data of controller operations. Abundant operational data logged in the field controllers include information such as historical cycle and phase split times, phase termination logging, and frequency of pedestrian request received, which can be conveniently obtained. Jointly using the controller operational data and a signal timing optimization software, the cycle length, phase splits, offsets, and phase sequences can be properly designed without traffic volume data. Experimental investigations based on hardware-in-the-loop simulation were conducted, which demonstrate that the proposed approach is feasible. In addition, the case study was performed regarding a real-world signal re-timing project in Reno, Nevada. Timing plans designed through the proposed approach and the conventional approach were evaluated, and the results showed that the proposed approach could deliver the similar or even better performance compared to the conventional signal re-timing approaches while a considerable saving in data collection costs could be achieved.

This paper was sponsored by TRB committee ACP25 Standing Committee on Traffic Signal Systems.

TRBAM-21-04004

English

16p

2021

Transportation Research Board 100th Annual Meeting

Web

Figures; References; Tables

Arterial highways; Cost effectiveness; Data collection; Hardware in the loop simulation; Traffic signal control systems; Traffic signal timing; Urban highways

Reno (Nevada)

Data and Information Technology; Highways; Operations and Traffic Management

Transportation Research Board Annual Meeting 2021 Paper #TRBAM-21-04004

TRIS, TRB, ATRI

Dec 23 2020 11:27AM