| 
       Triple 
        Traffic Management Center to Other Traffic Management Centers: device status
      Flow Description 
        Status information from devices
       | 
  
| 
       Solutions 
                Solution Description 
        This solution is used within the U.S..  It combines standards associated with US: TMDD with those for C-C: NTCIP Messaging. The US: TMDD standards include upper-layer standards required to implement centre-to-centre communications with traffic management systems.  The C-C: NTCIP Messaging standards include lower-layer standards that support partially secure communications between two centres as commonly used in the US.
       | 
  
| 
       Triple Solution Gap 
      
       | 
  
| 
       ITS Info 
      ITE TMDD Vol 2  
    ![]()  | 
    
       Click gap icons for more info. 
      
     | 
  ||
| 
       Mgmt 
       | 
    
       Facility 
       | 
    
       Security 
       
      IETF RFC 5246  
    ![]()  | 
 |
| 
       TransNet 
       | 
  |||
| 
       SubNet 
      Internet Subnet Alternatives  
    ![]()  | 
  |||
 
 
 