Triple
ITS Roadway Equipment to Traffic Management Center: variable speed limit status
Flow Description
Current operating status of the variable speed limit systems including the state of the equipment.
Solution Description
This solution is used within the U.S.. It combines standards associated with US: NTCIP Message Sign with those for I-F: SNMPv1/TLS. The US: NTCIP Message Sign standards include upper-layer standards required to implement centre-to-field message sign communications. The I-F: SNMPv1/TLS standards include lower-layer standards that define one way to retrofit basic security into SNMPv1 implementations (mainly in the US); however, this only secures the communications link and does not provide end-application security and is not recommended for new deployments.
Triple Solution Gap
ITS Info
NTCIP 1203
Click gap icons for more info.

Mgmt
NTCIP 1201
Bundle: SNMPv1 MIB
Facility
NTCIP 1203
NTCIP 2301
Security
Mind the gapMind the gap
IETF RFC 5246
TransNet
SubNet
TransNet TransNet

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SubNet SubNet

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ITS Info ITS Info

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Mgmt Mgmt

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Facility Facility

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Security Security

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