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traffic probe data (Architecture Flow*)

Vehicle data that is used to determine traffic conditions. In a basic implementation, the data could be limited to time stamped unique identifiers that can be used to measure a vehicle’s progress through the network. In more advanced implementations, the vehicle may report current position, speed, and heading and snapshots of recent events including route information, starts and stops, speed changes, and other information that can be used to estimate traffic conditions.

Roadway Information Service Provider

This Architecture Flow is in the following Service Packages:

• Traffic Probe Surveillance

This Architecture Flow is in the following Equipment Packages:

• ISP Probe Information Collection
• Roadway Probe Data Communications

Data Flows*:

• vehicle_traffic_probe_status_for_isp
• vehicle_traffic_probe_data_for_isp

Security Considerations:

• Operational Information

Standard* Activities:

• This architecture flow is a candidate for future standardization.

Roadway Map Update Provider

This Architecture Flow is in the following Service Packages:

• Traffic Probe Surveillance

This Architecture Flow is in the following Equipment Packages:

• Roadway Probe Data Communications

Data Flows*:

• tmup-traffic_probe_data

Security Considerations:

• Operational Information

Standard* Activities:

• This architecture flow is a candidate for future standardization.

Roadway Traffic Management

This Architecture Flow is in the following Service Packages:

• Traffic Probe Surveillance

This Architecture Flow is in the following Equipment Packages:

• Roadway Probe Data Communications
• TMC Probe Information Collection

Data Flows*:

• vehicle_traffic_probe_equip_status
• vehicle_traffic_probe_data_for_traffic

Security Considerations:

• Operational Information

Standard* Activities:

• NTCIP C2F: NTCIP Center-to-Field Standards Group
• NTCIP 1201: Global Object Definitions
• NTCIP 1206: Object Definitions for Data Collection and Monitoring (DCM) Devices

Vehicle Information Service Provider

This Architecture Flow is in the following Service Packages:

• Traffic Probe Surveillance

This Architecture Flow is in the following Equipment Packages:

• ISP Probe Information Collection
• Vehicle Traffic Probe Support

Data Flows*:

• traffic_probe_data_from_vehicle
• guidance_probe_data_from_vehicle

Security Considerations:

• Financial/Personal

Standard* Activities:

• This architecture flow is a candidate for future standardization.

Vehicle Roadway

This Architecture Flow is in the following Service Packages:

• Traffic Probe Surveillance

This Architecture Flow is in the following Equipment Packages:

• Roadway Probe Data Communications
• Vehicle Traffic Probe Support

Data Flows*:

• vehicle_traffic_probe_data
• vehicle_guidance_probe_data

Security Considerations:

• Financial/Personal

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
• IEEE 1455-1999: Standard for Message Sets for Vehicle/Roadside Communications
• SAE J2735: Dedicated Short Range Communications (DSRC) Message Set Dictionary