Recording Devices for Interconnected Grade Crossing and Intersection Signal Systems: An Informational Report

Appendix C: Example Block Diagrams/Wiring Diagrams

• AREMA C&S Manual: Recommended Vital Circuit Design Guidelines for Highway Traffic Signal Interconnection
• Illinois Commerce Commission: Specifications and Design Criteria for Traffic Signal Control Equipment at Locations Interconnected with Railroad Warning Devices, Chicago
• Minnesota DOT: Double Break Railroad Preempt Interconnect Circuit with Supervisor, Gate Down, and Supervisor Latch
• Minnesota DOT: Railroad Double Break Interconnect Circuit with Supervisor and Gate Down Logic