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C2C Communications Standards in Use
Region-wide distribution of transportation management information is a key function at the core of a transportation agency's ability to generate benefits from ITS. Agencies are executing C2C projects across the country using the two communications protocols.
Using WSDL/SOAP/XML
The Texas Department of Transportation has implemented a WSDL/SOAP/XML based Center-to-Center (C2C) product that allows traffic management center data (e.g. incident, traffic conditions, device status, etc.) to be exchanged among centers as well as providing the capability to send device requests (e.g. change a DMS, move a camera) if appropriate credentials are provided. The C2C product is deployed in several cities in Texas and it has also been utilized by the Florida Department of Transportation to connect centers throughout the state of Florida. The C2C product is "center independent" in that Traffic Management Centers develop an interface using a published well defined interface; this allows software systems developed by different vendors to seamlessly exchange data. For information on this project, see the web site http://www.nortex-its.org/ or http://sunguide.datasys.swri.edu.
Using DATEX-ASN
TRANSCOM is a coalition of 18 transportation and public safety agencies in the New York/New Jersey/Connecticut metropolitan region. The TRANSCOM project, Implementation of Regional Architecture (Note: This is different from the Regional ITS Architecture), has installed regional information servers for up to 47 centers at its member agencies to distribute information from roadside devices region wide. TRANSCOM is considering XML messaging over DATEX and WSDL for future web applications. For more information on this project, see the web site http://www.xcm.org/.
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