By 2000, demand for Downtown office area elevated, and construction of office buildings resumed. It runs from La Jolla within the north to San Ysidro in the south, and from Old Town and Downtown San Diego in the west to El Cajon and Santee in the east. COASTER Commuter rail 1 41 The San Diego Coast Express Rail (COASTER) operates in the central and northern coastal regions of San Diego County, operating from San Diego north to Oceanside. Caltrain Commuter rail 1 77 Caltrain runs from San Francis...