NTCIP C2C: NTCIP Center-to-Center Standards Group (Standard* Activities Group)

The National Transportation Communications for ITS Protocol (NTCIP) family of standards, created jointly by AASHTO, ITE and NEMA, addresses primarily the interfaces between a transportation management center, the ITS field devices it manages, and other centers. They provide both the rules for communicating (called protocols) and the vocabulary (called objects, data elements, and messages) necessary to exchange information between ITS systems.

The NTCIP Center-to-Center (NTCIP C2C) Group of Standards addresses the communications protocols between two centers (e.g. two traffic management centers exchanging information to facilitate regional coordination of traffic signals). Some of the communication protocols covered by this family are DATEX-ASN, XML, and FTP. These protocols are common across all Center-to-Center interfaces in the National ITS Architecture, and rather than repeat the entire list for each architecture flow, we have created this summary entry – the NTCIP C2C Group of communications standards.

The standards that describe the "vocabulary" (data elements and messages) are mapped to specific architecture flows rather than the entire set of NTCIP C2C interfaces. In the regional traffic coordination example above, the Traffic Management Data Dictionary and Message Set for External TMC Communications (TMDD and MS/ETMCC) standard would be mapped to the specific flows between two Traffic Management Subsystems.

In order to satisfy a wide spectrum of system and regional communications requirements, Center-to-Center ITS deployments should each implement the combinations of the following NTCIP C2C communications protocols that best meet their needs.

This Group includes the following Standards Activities:

Source Architecture Flow Destination
Archived Data Management archive requests Traffic Management
Archived Data Management archived data products Traffic Management
Care Facility care facility status Emergency Management
Emergency Management emergency archive data Archived Data Management
Emergency Management care facility status request Care Facility
Emergency Management event confirmation Event Promoters
Emergency Management hazmat information request Fleet and Freight Management
Emergency Management incident information Information Service Provider
Emergency Management incident information Maintenance and Construction Management
Emergency Management incident response status Maintenance and Construction Management
Emergency Management maint and constr resource request Maintenance and Construction Management
Emergency Management incident information for media Media
Emergency Management incident command information coordination Other Emergency Management
Emergency Management incident report Other Emergency Management
Emergency Management incident response coordination Other Emergency Management
Emergency Management resource coordination Other Emergency Management
Emergency Management incident information Rail Operations
Emergency Management incident response status Rail Operations
Emergency Management emergency traffic control request Traffic Management
Emergency Management incident information Traffic Management
Emergency Management incident response status Traffic Management
Emergency Management remote surveillance control Traffic Management
Emergency Management resource deployment status Traffic Management
Emergency Management resource request Traffic Management
Emergency Management road closure notification Traffic Management
Emergency Management incident information Transit Management
Emergency Management incident response status Transit Management
Event Promoters event plans Emergency Management
Event Promoters event information Information Service Provider
Event Promoters event plans Traffic Management
Fleet and Freight Management hazmat information Emergency Management
Fleet and Freight Management route request Information Service Provider
Information Service Provider traveler archive data Archived Data Management
Information Service Provider transportation information for operations Emergency Management
Information Service Provider event information request Event Promoters
Information Service Provider incident information Fleet and Freight Management
Information Service Provider road network conditions Fleet and Freight Management
Information Service Provider route plan Fleet and Freight Management
Information Service Provider field equipment status Maintenance and Construction Management
Information Service Provider transportation information for operations Maintenance and Construction Management
Information Service Provider traveler information for media Media
Information Service Provider multimodal information request Multimodal Transportation Service Provider
Information Service Provider emergency traveler information Other ISP
Information Service Provider incident information Other ISP
Information Service Provider multimodal information Other ISP
Information Service Provider parking information Other ISP
Information Service Provider road network conditions Other ISP
Information Service Provider transit service information Other ISP
Information Service Provider parking lot data request Parking Management
Information Service Provider fare and price information Traffic Management
Information Service Provider logged vehicle routes Traffic Management
Information Service Provider transportation information for operations Traffic Management
Information Service Provider selected routes Transit Management
Information Service Provider transit information request Transit Management
Information Service Provider transit trip request Transit Management
Information Service Provider transportation information for operations Transit Management
Information Service Provider travel service information request Travel Services Provider
Maintenance and Construction Management incident information Emergency Management
Maintenance and Construction Management maint and constr resource response Emergency Management
Maintenance and Construction Management road weather information Emergency Management
Maintenance and Construction Management road weather information Information Service Provider
Maintenance and Construction Management road weather information Media
Maintenance and Construction Management road weather information Other MCM
Maintenance and Construction Management road weather information Rail Operations
Maintenance and Construction Management environmental conditions data Surface Transportation Weather Service
Maintenance and Construction Management road weather information Surface Transportation Weather Service
Maintenance and Construction Management environmental conditions data Traffic Management
Maintenance and Construction Management incident information Traffic Management
Maintenance and Construction Management road weather information Traffic Management
Maintenance and Construction Management road weather information Transit Management
Maintenance and Construction Management environmental conditions data Weather Service
Maintenance and Construction Management road weather information Weather Service
Media external reports Traffic Management
Multimodal Transportation Service Provider multimodal information Information Service Provider
Multimodal Transportation Service Provider multimodal service data Transit Management
Multimodal Transportation Service Provider service response Transit Management
Other Emergency Management incident command information coordination Emergency Management
Other Emergency Management incident report Emergency Management
Other Emergency Management incident response coordination Emergency Management
Other Emergency Management resource coordination Emergency Management
Other ISP emergency traveler information Information Service Provider
Other ISP incident information Information Service Provider
Other ISP multimodal information Information Service Provider
Other ISP parking information Information Service Provider
Other ISP road network conditions Information Service Provider
Other ISP transit service information Information Service Provider
Other MCM road weather information Maintenance and Construction Management
Other Roadway roadway equipment coordination Roadway
Other Traffic Management device control request Traffic Management
Other Traffic Management device data Traffic Management
Other Traffic Management device status Traffic Management
Other Traffic Management emergency traffic coordination Traffic Management
Other Traffic Management incident information Traffic Management
Other Traffic Management road network conditions Traffic Management
Other Transit Management transit fare coordination Transit Management
Other Transit Management transit service coordination Transit Management
Other Transit Management transit traveler information coordination Transit Management
Parking Management parking information Information Service Provider
Parking Management parking information Traffic Management
Parking Management parking information Transit Management
Payment Administration toll probe data Traffic Management
Rail Operations incident information Emergency Management
Roadway roadway equipment coordination Other Roadway
Surface Transportation Weather Service environmental conditions data Maintenance and Construction Management
Surface Transportation Weather Service environmental conditions data Traffic Management
Surface Transportation Weather Service transportation weather information Traffic Management
Traffic Management archived data product requests Archived Data Management
Traffic Management traffic archive data Archived Data Management
Traffic Management emergency traffic control information Emergency Management
Traffic Management incident information Emergency Management
Traffic Management incident response status Emergency Management
Traffic Management resource deployment status Emergency Management
Traffic Management resource request Emergency Management
Traffic Management road network conditions Emergency Management
Traffic Management incident information Information Service Provider
Traffic Management road network conditions Information Service Provider
Traffic Management environmental conditions data Maintenance and Construction Management
Traffic Management field equipment status Maintenance and Construction Management
Traffic Management incident information Maintenance and Construction Management
Traffic Management road network conditions Maintenance and Construction Management
Traffic Management traffic information for media Media
Traffic Management device control request Other Traffic Management
Traffic Management device data Other Traffic Management
Traffic Management device status Other Traffic Management
Traffic Management emergency traffic coordination Other Traffic Management
Traffic Management incident information Other Traffic Management
Traffic Management road network conditions Other Traffic Management
Traffic Management parking lot data request Parking Management
Traffic Management parking lot inputs Parking Management
Traffic Management environmental conditions data Surface Transportation Weather Service
Traffic Management transportation weather information request Surface Transportation Weather Service
Traffic Management incident information Transit Management
Traffic Management road network conditions Transit Management
Traffic Management traffic control priority status Transit Management
Traffic Management environmental conditions data Weather Service
Transit Management transit emergency data Emergency Management
Transit Management transit and fare schedules Information Service Provider
Transit Management transit schedule adherence information Information Service Provider
Transit Management service request Multimodal Transportation Service Provider
Transit Management transit multimodal information Multimodal Transportation Service Provider
Transit Management transit fare coordination Other Transit Management
Transit Management transit service coordination Other Transit Management
Transit Management transit traveler information coordination Other Transit Management
Transit Management parking lot data request Parking Management
Transit Management traffic control priority request Traffic Management
Travel Services Provider travel service information Information Service Provider