01586682

Component

https://doi.org/10.3141/2488-04

Time-of-day operation (i.e., the implementation of different signal settings at different times of the day) is commonly used in traffic signal operation to accommodate time-dependent traffic patterns. In the current practice of signal retiming, traffic engineers rely largely on engineering judgments to determine the proper time-of-day transitions; this approach may lead to inefficient operations. For such a deficiency to be reduced, in this research an easy-to-use approach was proposed to fine-tune time-of-day transitions for signalized arterials. The optimal transition points were determined through the evaluation of total delays on the basis of a Highway Capacity Manual (HCM) formula. To account for the impact of the coordination and actuation of arterial signals, the researchers extended HCM formula with a simple but effective model to estimate the green duration of actuated traffic signals. The proposed approach was demonstrated and validated with a case study that used traffic data collected from the SMART SIGNAL system.

01586614

15-5616

English

pp 32–40

2015

Transportation Research Record: Journal of the Transportation Research Board

9780309369244

Print

Figures (10) ; References (13) ; Tables (1)

Arterial highways; Periods of the day; Traffic actuated controllers; Traffic signal timing; Travel patterns

Highways; Operations and Traffic Management; I73: Traffic Control

TRIS, TRB, ATRI

Dec 30 2014 1:53PM

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