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Triple
Connected Vehicle Roadside Equipment to ITS Roadway Equipment: signal preemption request
Flow Description
Direct request for preemption to a traffic signal controller that results in preemption of the current control plan and grants right-of-way to the requesting vehicle. This flow identifies the required phase and timing of the preemption. This flow may also cancel the preemption request (e.g., when the requesting vehicle clears the intersection).
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Solutions
   Solution Description
This solution is used within the U.S.. It combines standards associated with US: NTCIP Signal Priority with those for I-F: SNMPv3. The US: NTCIP Signal Priority standards include upper-layer standards required to implement centre-to-field traffic signal control priority communications (e.g., for busses and emergency vehicles). The I-F: SNMPv3 standards include lower-layer standards that support secure centre-to-field and field-to-field communications using simple network management protocol (SNMPv3); implementations are strongly encouraged to use the TLS for SNMP security option for this solution to ensure adeqaute security.
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Triple Solution Gap
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ITS Info
NTCIP 1202
 NTCIP 1211 |
Click gap icons for more info.
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Mgmt
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Facility
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Security
IETF RFC 6353
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TransNet
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SubNet
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