ITS Decision: Gateway to Understanding and Applying Intelligent Transportation Systems, Phase IV: Expert System Tool Development, Case-­‐Based Reasoning Tool Expansion, Website Functionality Improvement, and Update of ITS Information Content

The ITS Decision website was created to provide Intelligent Transportation Systems (ITS) information and analysis tools. Phase IV of the research project focuses on the design, updating of information, and tool development for the ITS Decision website. The website provides a comprehensive overview of the deployment of ITS technologies, products and services at local, state, national, and international locations where they have been deployed. ITS Decision provides extensive information on project costs and benefits, risks and lessons learned. This project continued the development of ITS decision making tools namely: the Expert System, Case Based Reasoning and the Cal-ITS Benefit-Cost model. Informational sections of the website were updated with recent information and data. To facilitate deliberation and dialog regarding ITS, this project also developed a wiki-based web tool that provides information, addresses ITS related comments, and collects feedback from transportation professionals who contribute to the ITS knowledge base. Overall, this project produced a comprehensive, robust, practical and user-friendly website that contains valuable information about ITS as well as decision support and analysis tools.