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right-of-way request notification (Architecture Flow*)

Notice that a request has occurred for signal prioritization, signal preemption, pedestrian call, multi-modal crossing activation, or other source for right-of-way.

Roadway Traffic Management

This Architecture Flow is in the following Service Packages:

• Transit Signal Priority
• Traffic Signal Control
• Drawbridge Management
• Mixed Use Warning Systems
• Emergency Routing

This Architecture Flow is in the following Equipment Packages:

• Multimodal Crossing Control
• Roadway Mixed Use Sensing
• Roadway Signal Controls
• Roadway Signal Preemption
• Roadway Signal Priority
• TMC Multimodal Crossing Management
• TMC Signal Control

Data Flows*:

• pedestrian_sensor_status
• pedestrian_sensor_data
• multimodal_crossing_sensor_status
• multimodal_crossing_sensor_data
• signal_priority_override
• signal_preemption_override

Security Considerations:

• Operational Information

Standard* Activities:

• NTCIP C2F: NTCIP Center-to-Field Standards Group
• NTCIP 1201: Global Object Definitions
• NTCIP 1202: Object Definitions for Actuated Traffic Signal Controller (ASC) Units
• NTCIP 1211: Object Definitions for Signal Control and Prioritization (SCP)
• NTCIP 1214: Object Definitions for Conflict Monitor Units (CMU)