01628875

Component

Traffic safety and mobility are usually implemented with different control devices, and thus often compete for the limited available resources. This study has proposed a system that integrates the dilemma zone protection with speed harmonization to concurrently improve the operational efficiency and safety at high-speed intersections. The proposed system, based mainly on the hardware for dilemma zone protection, is designed to take effective actions, based on the signal status, speed, and the location of the approaching vehicles, to ensure either a safe stop or a smooth progression through the intersection. A simulation platform has been designed to replicate the system’s functions and driver responses under either green or yellow interval. The results of extensive simulation experiments confirm the effectiveness of the proposed system on offering protection to the red-light running vehicles, and on improving traffic mobility with respect to fewer stops, reduced stop delays, and less fuel consumption. The shared utilization of deployed hardware devices and control components allows responsible agencies to best use available resources for concurrently improving intersection safety and efficiency.

This paper was sponsored by TRB committee AHB50 Standing Committee on Traffic Control Devices.

01618707

17-03782

English

20p

2017

Transportation Research Board 96th Annual Meeting

Digital/other

Figures; References; Tables

Dilemma zone; Suburbs; Traffic flow; Traffic safety; Traffic signal intervals; Traffic signal timing; Traffic speed

Highways; Operations and Traffic Management

Transportation Research Board Annual Meeting 2017 Paper #17-03782

TRIS, TRB, ATRI

Dec 8 2016 11:26AM