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       Triple 
        Emergency Vehicle OBE to Connected Vehicle Roadside Equipment: local signal preemption request
      Flow Description 
        Direct control signal or message to a signalized intersection that results in preemption of the current control plan and grants right-of-way to the requesting vehicle.
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       Solutions 
                      Solution Description 
        This solution is used within the U.S..  It combines standards associated with US: SAE Signal Preemption with those for V-X: Local Unicast Wireless (US). The US: SAE Signal Preemption standards include upper-layer standards required to implement signal preemption and priority information flows.  The V-X: Local Unicast Wireless (US) standards include lower-layer standards that support local-area unicast wireless solutions, such as DSRC technologies, LTE, etc.
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       Triple Solution Gap 
      
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       ITS Info 
      ![]() ![]() ![]()  
      SAE J2735  
    ![]() CEN ISO 19091 ![]() SAE J2945/11 ![]()  | 
    
       Click gap icons for more info. 
      
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       Mgmt 
      IEEE 1609.3  
    ![]() IEEE 1609.4 ![]()  | 
    
       Facility 
       
      SAE J2735  
    ![]() SAE J2945/0 ![]()  | 
    
       Security 
       
      IEEE 1609.2  
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       TransNet 
      IEEE 1609.3  
    ![]()  | 
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       SubNet 
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