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       Triple 
        ITS Roadway Equipment to Connected Vehicle Roadside Equipment: environmental sensor data
      Flow Description 
        Current road conditions (e.g., surface temperature, subsurface temperature, moisture, icing, treatment status) and surface weather conditions (e.g., air temperature, wind speed, precipitation, visibility) as measured and reported by fixed and/or mobile environmental sensors.  Operational status of the sensors is also included.
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       Solutions 
                Solution Description 
        This solution is used within the U.S.  It combines standards associated with US: NTCIP Environmental Sensors with those for I-F: OMG DDS RPC. The US: NTCIP Environmental Sensors standards include upper-layer standards required to implement centre-to-field weather and environmental sensor communications.  The I-F: OMG DDS RPC standards include lower-layer standards that support secure remote procedure calls between a field device and another field device or a centre over a field communication link
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       Triple Solution Gap 
      
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       ITS Info 
      NTCIP 1204  
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       Click gap icons for more info. 
      
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       Mgmt 
      NTCIP 1201  
    ![]() OMG DDS ![]()  | 
    
       Facility 
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      OMG DDS  
    ![]() OMG DDS-RPC ![]() OMG DDSI-RTPS ![]()  | 
    
       Security 
       
      OMG DDS-Security  
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       TransNet 
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       SubNet 
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