SPRINTER service is operated with Siemens Desiro diesel multiple units manufactured in Germany, where they are widely used.

Metrolink is a commuter rail network connecting major cities in Southern California including San Diego via transfers at Oceanside, Anaheim, Los Angeles, and Riverside.

A third agency, CTS (County Transit System) formerly operated in the eastern and southern suburbs and Poway but was integrated into MTS in 2002.

The city of Chula Vista contracts with Transdev to provide fixed-route bus service.

In addition, express buses from the Riverside Transit Agency connect Temecula with Oceanside and Escondido.

MTS and NCTD operate bus rapid transit lines in San Diego County.

Interstate 8 begins at the Sunset Cliffs Boulevard in Ocean Beach, and heads east to the Imperial Valley and Arizona.

SANDAG publishes a map that shows all of these bikeways in the greater San Diego Metropolitan area annually, and it is available at most local bike shops.

As a result, recently, numerous plans have been proposed to either add another airport in the area or relocate it entirely.

There are a variety of taxi companies that are legally allowed to operate in the San Diego area.