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local signal priority request (Architecture Flow*)

Request from a vehicle to a signalized intersection for priority at that intersection.

Transit Vehicle Roadway

This Architecture Flow is in the following Service Packages:

• Transit Signal Priority

This Architecture Flow is in the following Equipment Packages:

• On-board Transit Signal Priority
• Roadway Signal Priority

Data Flows*:

• transit_vehicle_roadway_priorities

Security Considerations:

• System Control

Standard* Activities:

• DSRC 5GHz: Dedicated Short Range Communication at 5.9 GHz Standards Group
• DSRC 915MHz: Dedicated Short Range Communication at 915 MHz Standards Group
• NTCIP 1201: Global Object Definitions
• NTCIP 1211: Object Definitions for Signal Control and Prioritization (SCP)
• APTA TCIP-S-001 3.0.4: Standard for Transit Communications Interface Profiles