Overview
TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 507: Traffic Signal Preemption at Intersections Near Highway–Rail Grade Crossings documents the current practices of traffic signal preemption deployed at intersections adjacent to railway grade crossing in both the United States and Canada. The study provides information on practices dealing with traffic signal preemption, maintenance, funding, and operations.
Source Organization Location
Washington
DC
Role in Organization
Transportation Planner
Public
Senior Engineer
Researcher/Academic
Principal Engineer
Manager / First Line Supervisor
Director / Program Manager
Maintenance Staff
Technician
CEO / GM / Commissioner
Engineer
Operator
Senior Manager
Public Safety Officer
Transit Professional
Associate Engineer
Media / PIO
Emergency Manager