Orbital Transportation Management Systems (TMS), a division of Orbital Sciences Corp., was awarded an $8.4 million contract to supply communications and dispatch software to San Diego's Regional Transit Management System (RTMS). Orbital TMS was selected by Motorola Inc.'s Commercial, Government and Industrial Solutions Sector to supply and install in-vehicle components and control center software for the San Diego Metropolitan Transit Development Board's (MTDB) new RTMS system. The RTMS brings together San Diego Transit Corp. and North County Transit District, which together operate a fleet of 515 public buses and other transit and service vehicles. Orbital's Orbcad communications and dispatch software system will improve MTDB's efficiency in managing and controlling its bus and service vehicle fleet. The RTMS system is designed to track and administer hundreds of vehicles with significant expansion capabilities allowing for the incorporation of other regional transit agencies into its system in the future. Orbital's system features full computer assisted dispatch capabilities, real-time vehicle tracking via global positioning satellites, wireless data communications and automated vehicle location map and data displays.