Evaluation of Field Experiment of Group-Based Signal Control in Japan.

Author(s)
Tang, K. & Nakamura, H.
Year
Abstract

This paper presents the evaluation results on operational and safety performance of group-based signal control, based on a field test undertaken inJapan recently. Starting response time (SRT), start-up lost time (SULT), clearance lost time (CLT), saturation flow rate (SFR), and approach delay (AD) are selected to represent operational performance. Certain occurrencefrequencies and rates of stop-line crossing during amber (SCA) and red-light-running (RLR) act as the measures to safety performance during intergreen intervals. The results from the before-and-after analyses supported that the group-based control itself generally didn't significantly affect SRT, SULT, CLT, and SFR, while remarkably improved AD. Meanwhile, it substantially decreased SCA and RLR at the exclusive through and right-turn lanes. It reveals that both operational and safety benefits might be expected by applying such a policy.

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Publication

Library number
C 47211 (In: C 46669 CD-ROM) /73 / ITRD E852786
Source

In: ITS in daily life : proceedings of the 16th World Congress on Intelligent Transport Systems (ITS), Stockholm, Sweden, September 21-25, 2009, 12 p.

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This publication is one of our other publications, and part of our extensive collection of road safety literature, that also includes the SWOV publications.