San Antonio Regional ITS Architecture


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Architecture Flow: local signal preemption request

Description:
Direct control signal or message to a signalized intersection that results in preemption of the current control plan and grants right-of-way to the requesting vehicle.

Communications Standards:
DSRC 5GHz IEEE 1609.1 Resource Manager for DSRC 5.9 GHz IEEE 1609.1
DSRC 5GHz IEEE 1609.2 Application Services (Layers 6,7) for DSRC 5.9 GHz IEEE 1609.2
DSRC 5GHz IEEE 1609.3 Communications Services (Layers 4,5) for DSRC 5.9 GHz (Future Standard) IEEE 1609.3
DSRC 5GHz IEEE 1609.4 Medium Access Control (MAC) Extension & the MAC Extension Management Entity for DSRC 5.9 GHz IEEE 1609.4
DSRC 5GHz IEEE 802.11 Standard Specification for Telecommunications and Information Exchange Between Roadside and Vehicle Systems - 5 GHz Band Dedicated Short Range Communications (DSRC) Medium Access Control (MAC) and Physical Layer (PHY) Specifications IEEE 802.11
DSRC 5GHz IEEE 802.2 Logical Link (Layer 2) for DSRC 5.9 GHz IEEE 802.2
DSRC 5GHz ISO 21210 Networking Services (Layer 3) for DSRC 5.9 GHz ISO 21210
DSRC 915MHz ASTM1 Standard Specification for Dedicated Short Range Communication (DSRC) Physical Layer using Microwave in the 902-928 MHz Band ASTM E2158-01
DSRC 915MHz ASTM2 Standard Provisional Specification for Dedicated Short Range Communication (DSRC) Data Link Layer ASTM PS 105-99
Message Standards:
NEMA TS3.4 NEMA TS3.4 Global Object Definitions NTCIP 1201
NTCIP 1211 NTCIP 1211 Object Definitions for Signal Control and Prioritization NTCIP 1211
Data Standards:
No Data Standards

Last updated: 08-15-07