Without cars, people must find alternative forms of transportation, and in Bogota, for example, during the Day Without Cars, "millions of Colombians hiked, biked, skated...to work," and since this campaign began in the mid-1990s, it has seen "the construction of 118 miles of bicycle paths" and has resulted in parks, sports centers, and broad sidewalks; considerably less traffic; and the emergence of "new restaurants and upscale shopping districts," (Source 3).