Requirements for Road Weather Applications
- Ground Vehicle Standard
Published March 24, 2020 by SAE International in United States
Inclement weather can have a significant impact on surface transportation systems. It can result in hazardous conditions for travelers due to poor visibility, or wet or icy roadways. Weather applications have the potential to provide additional data to surface transportation infrastructure owners and operators, allowing them to better assess the impacts of the weather environment on or around the roadway and to better manage the surface transportation system. Such weather applications can:
Collect road weather data from connected vehicles and mobile devices, increasing the number of data sources available.
Provide road weather related traveler information to travelers via connected vehicles and devices, such as when and where a hazardous condition exists.
Provide the ability to manage road weather response on specific roadways.
This SAE Standard specifies interface requirements between vehicles and infrastructure for weather applications, including detailed systems engineering documentation (needs and requirements mapped to appropriate message exchanges). The purpose of this SAE Standard is to enable interoperability supporting these weather applications over a communications technology agnostic interface.
Weather is a significant factor in the management and operation of transportation systems. Most, if not all, transportation agencies consider weather-related applications to be of critical importance in providing safe and efficient transportation systems to the travelling public. This standard defines interface requirements to support a weather applications interface in a connected vehicle environment, with a focus on information exchanges between the infrastructure and connected vehicles. This document specifies a new message, new data frames, and data elements associated with road weather applications.
Data Sets - Support Documents
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|Table 1||National architecture mapping (V2I)|
|Table 2||Weather data collection use case|
|Table 3||Weather-related traveler information use case|
|Table 4||Roadway treatment plans use case|
|Table 5||Conformance symbols|
|Table 6||Predicate notations|
|Table 7||Support column symbols|
|Table 8||NRTM table|
|Table B1||WSMP configuration parameters|
|Table B2||Recommended WSA Configuration Parameters|
|Table C1||RWM broadcast application security profile identification|
|Table C2||RWM Application Security Profile for Sending Messages|
|Table C3||RWM broadcast application security profile for receiving messages|
|Table C4||RWM broadcast application security management security profile|
|Table C5||Entity activity groups: road weather reporting|
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