Version 3.0 of the Systems Engineering Guidebook for ITS Web Site. Co-sponsored by the Federal Highway Administration and the California Department of Transportation, this web site provides quick and easy access to information that will help you intelligently apply systems engineering to your Intelligent Transportation Systems projects. This resource is the culmination of decades of experience in applying these processes and capabilities in ITS and other industries. We are eager to add your lessons learned and experience in a continuing effort to provide a quality, relevant resource for ITS practitioners.