The wide variety of remote sensors used in Intelligent Transportation System (ITS) applications (loops, probe vehicles, radar, cameras, etc.) has created a need for general methods by which data can be shared among agencies and users who own disparate computer systems. In this report, the authors present a methodology that demonstrates that it is possible to create, encode, and decode a self-describing data stream using the following: (1) existing data description language standards; (2) parsers to enforce language compliance; (3) a simple content language that flows out of the data description language; and (4) architecture neutral encoders and decoders based on ASN.1.
Washington State Transportation Center (TRAC)
Advanced traveler information systems, Data collection, Data sharing, Self describing data, Standards, Traffic data.