Title

DESIGN GUIDELINES FOR RAILROAD PREEMPTION AT SIGNALIZED INTERSECTIONS

Document Type

Journal Article

Publication Date

1997

Subject Area

operations - traffic, planning - safety/accidents, planning - safety/accidents, mode - rail

Keywords

Warning signals, Warning devices, Traffic accidents, Signalized intersections, Signalised intersections, Safety measures, Safety factors, Safety, Railroad signals, Railroad signaling, Railroad grade crossings, Railroad grade crossing collisions, Railroad accidents, Public safety, Level crossings, Highway railroad grade crossings, Highway rail intersections, Highway accidents, Guidelines, Grade crossings

Abstract

Preemption of traffic signal controllers near railroad grade crossings equipped with active warning devices is often required because queues from the intersection can extend back over the tracks, thereby creating the potential for a serious vehicle-train accident. The purpose of this article is to present guidelines for determining when a preemption capability is required at isolated intersections and for calculating the duration of the preemption timing intervals.