As a form of surface rapid transit, trams share roadways with general traffic and encounter grade crossings at intersections, requiring them to adhere to traffic signal control—stopping at red lights and proceeding at green lights.

The system is designed based on comprehensive factors including tram route conditions, station distribution, operational characteristics, and surrounding traffic patterns. It balances tram priority control with green-wave coordination for general traffic, employing a two-tier control approach:

1.Intersection-level short-term signal optimization: Implements immediate priority adjustments at individual crossings.

2.Platform-level corridor coordination: Optimizes signal timing across multiple intersections.

This dual-mode control ensures stable traffic flow for all vehicles while significantly enhancing tram operational efficiency.

Architecture of Tram Priority Control System

Intersection Monitoring of Tram Priority Control System