With the development of the Internet, the traditional GIS
based ITS application systems are needed to transform to Web
enable ITS system for widely accessible and convenient usable
in browser. However, the development of the Web GIS based
ITS application systems requires the customer to increase more
effort and repetition works for constructing the Web GIS
system for the different ITS systems. As the technology of web
services evolves, the web service becomes a main working
pattern and a significant application model for next generation
Internet application [3, 4]. The GIS web services can provide
the hosted spatial data and GIS functionality to integrate the
customized ITS applications to perform basic geo-processing
tasks, such as address matching, map image display, and
routing, without maintaining GIS tools or the associated
geographical data. Therefore, the GIS Web service technology
is very promising for developing the next generation Web GIS
based ITS applications systems [5].