Triple
Traffic Management Center to Vehicle OBE: speed management information
Flow Description
Target speeds, speed advisories, and/or speed limit information provided to a vehicle. The information includes the current speed value(s), the route segment(s) and lane(s) where the speeds apply, and an indication of whether the speeds are suggested target speeds, posted advisory speeds, or enforceable speed limit values. This flow may also include information about the reason for reduced speeds and provide target lane information if lane changes are required.
Solution Description
This solution is used within the E.U., and Australia. It combines standards associated with EU: Contextual Speed Information Service with those for I-M: Mobile Internet (X.509). The EU: Contextual Speed Information Service standards include upper-layer standards that support for providing speed information to a vehicle from roadside infrastructure. The I-M: Mobile Internet (X.509) standards include lower-layer standards that support secure communications between two entities, either or both of which may be actively moving; based on X.509 certificates. A non-mobile (if any) endpoint may connect to the wide-area-wireless service provider using any Intneret connection method.
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CEN ISO 19321
CEN ISO 17426
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