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hri request (Architecture Flow*)

A request for highway-rail intersection status or a specific control request intended to modify HRI operation.

Traffic Management Roadway

This Architecture Flow is in the following Service Packages:

• Standard Railroad Grade Crossing
• Advanced Railroad Grade Crossing
• Railroad Operations Coordination

This Architecture Flow is in the following Equipment Packages:

• Advanced Rail Crossing
• HRI Traffic Management
• Rail Operations Coordination
• Standard Rail Crossing

Data Flows*:

• tms_requests
• rail_operations_requests

Security Considerations:

• System Control

Standard* Activities:

• This architecture flow is a candidate for future standardization.