Efficient Deployment of Advanced Public Transportation Systems (EDAPTS) Smart Transit System was developed by California Polytechnic State University, San Luis Obispo in a previous research effort from 1997 to 2007. California Partners for Advanced Transit and Highways (PATH) and the California Department of Transportation (Caltrans) have sponsored follow-on research to develop performance-based specifications for the EDAPTS system. These specifications are intended to facilitate industry adoption and widespread deployment of EDAPTS transit management system. The EDAPTS Performance Specification was developed by reviewing industry performance specification best practices, identifying all unique EDAPTS elements, determining appropriate performance metrics for each element, and determining these performance metrics. All EDAPTS elements and their associated performance metrics were organized and imported into a database for ease of analysis and automated performance specification report generation. An EDAPTS data-formatting standard was developed in conjunction with performance specification development efforts. The data-formatting standard is required to ensure that various parts of EDAPTS will be able to be procured from vendors as a commodity with ensured interoperability in the future. The non-proprietary EDAPTS performance specification and its supporting database program are available for general use by transit operators, service provides, and transit management system providers.