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Connected Vehicle Roadside Equipment 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.
Solutions
US: SAE Traveler Info - Local Broadcast Wireless (US)
EU: Contextual Speed Information Service - Local Broadcast Wireless (AU/EU)

EU: In-Vehicle Information - Local Broadcast Wireless (AU/EU)
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 V-X: Local Broadcast Wireless (AU/EU). The EU: Contextual Speed Information Service standards include upper-layer standards that support for providing speed information to a vehicle from roadside infrastructure. The V-X: Local Broadcast Wireless (AU/EU) standards include lower-layer standards that support local-area broadcast wireless solutions, such as DSRC technologies, 5G LTE, etc.
Triple Solution Gap
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CEN ISO 19321
CEN ISO 17426
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CEN ISO 14823
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