Our Story

With over 15 years of experience in the traffic signal and railroad industry, Overlap Signal focuses on developing specialized software, tools, and interface hardware designed to support real-world operations, diagnostics, testing, and system visibility.

Our products are built from firsthand field experience working with railroad preemption, transit signal priority, traffic controller communications, conflict monitors, and operational testing environments. We understand the importance of reliable equipment, accurate diagnostics, and proper system verification when working with safety-critical infrastructure.

From monitoring and troubleshooting tools to purpose-built testing hardware, our goal is to provide practical solutions that help agencies, integrators, and technicians improve efficiency, simplify diagnostics, and support safer system operation in the field.