The San Diego Metropolitan Transit System (MTS) is the public transit service provider for Central, South and East San Diego County. MTS operating subsidiaries include the San Diego Trolley, Incorporated (SDTI) and San Diego Transit, Corporation (SDTC). San Diego Transit directly operates approximately half of all fixed-route bus service within its service area. The remainder are provided under contractual agreements with Transdev or Southland Transportation Services. Some MTS bus routes connect to Breeze services in Escondido or Ramona in the NCTD service area. MTS has begun downloading their route schedules to Google and this has spawned a new generation of trip planners such as TransitTrips.