Transportation Transportation San Diego Zoo Bus circa 1950 - The tours have always been popular San Diego & Coronado Ferry circa 1940 - transported people & cars across the bay Electriquette 1915 These electric powered wicker chairs were the only vehicles allowed on the Prado during the exhibition Trolley, circa 1900 On Fifth Street (renamed Fifth Avenue in the 1930's) Planes, circa 1940s Over the new Civic Center Building(now County Administration Fifth Avenue Carwash circa 1940 - Fifth & Kalmia Trolley, circa 1940's Westbound on University under the Georgia Street Bridge Moving Walkway circa 1960 One of the city's first outside moving walkways at the Zoo