The "Gateway to the Peninsula" is located at the northernmost edge of San Mateo County. Known as the regional hub for retail and healthcare, Daly City is extremely diverse. The Doelger style housing, developed by Henry Doelger, has become a mainstay in the city and became popularized by Malvina Reynolds in the song "Little Boxes". Because of its central location, diversified economy, excellent transportation links, and a growing young and productive labor force, Daly City’s future for economic growth is bright. Daly City’s extensive transportation infrastructure includes Highways 101 and 82, Interstate 280, and the Bay Area Rapid Transit (BART) system. Interstate 280, which bisects Daly City, is a primary transportation corridor linking San Francisco with San Mateo and Santa Clara counties. Daly City is approximately eight miles south of downtown San Francisco and the San Francisco International Airport is just nine miles from the City; both are easily accessible by freeway or BART. Daly City is also served by the San Mateo and San Francisco transit systems.