<P> In Tijuana there is currently no public rail system, although, there is a system of buses that operate in the area . However, it was reported by the San Diego Union - Tribune that San Diego officials desired that the California High Speed Rail be extended to Tijuana and South Bay in order to capitalize on the potential economic benefits . </P> <P> Many businesses in South Bay offer Mexican car insurance on a short - term, prepaid basis . Most large car rental companies in San Diego do permit their vehicles to be taken across the border but generally require a hefty fee, sometimes costing more than the rental, for Mexican auto insurance . Visitors to the region should note that automobile insurance does not travel across the international border . Vehicles registered in Mexico may also require separate insurance for use in the United States . In California Automobile insurance is required by the State . </P> <P> San Diego--Tijuana is at the junction of major interstates, state routes and federal highways . The region is at the terminus of ten major Interstates and Federal Highways . Radiating to the east and south are connections to the Imperial Valley, Mexicali Valley, and the Arizona Sun Corridor via Interstate 8, the Inland Empire, the Las Vegas Strip and metropolitan area and Salt Lake City via Interstate 15; and to the Greater Ensenada area via Federal Highway 1D . To the north and west the area is connected to the Los Angeles metropolitan area, Northern California, and Cascadia via Interstate 5 . Interstate 5 and Federal Highway 1 are critical highways for commercial and international trade due to their junction at the San Ysidro Port of Entry, linking major industrial regions along the British Columbia Coast, West Coast of the United States, and the Gold Coast of Baja California at the busiest port of entry in the world . The metropolitan area is linked by Federal Highway 2 and State Route 111 to Gulf of Mexico cities . </P> <P> Within the metropolitan region, there are many transportation routes via highway . These included Interstate 805, connecting Tijuana to Del Mar . Many highways have a terminus in South Bay and run north and west towards other agglomerations such as the Inland Empire and Los Angeles metropolitan area . State Routes that link to these urban areas include State Route 79 and State Route 78 . San Diego--Tijuana is linked to Ensenada by various ways as well; including Federal Highway 3, Federal Highway 1 and Federal Highway 1D, running from the border cities of Tijuana and Tecate to the Cinderella of the Pacific . </P>

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