NCHRP Synthesis 507: Traffic Signal Preemption at Intersections Near Highway–Rail Grade Crossings

Overview

Traffic Signal Preemption at Intersections Near Highway–Rail Grade Crossings

TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 507: Traffic signal operations near highway–rail grade crossings are important from both safety and mobility perspectives, but practice varies widely. The goal of this synthesis is to document the state of practice of traffic signal preemption deployed at intersections adjacent to highway–rail grade crossings in the United States and Canada. The study provides information on practices dealing with traffic signal preemption, maintenance, funding, and operations.