Bike The Drive is a recreational, non-competitive bicycle ride held each year in Chicago, in which Lake Shore Drive is cleared of motor vehicle traffic and opened exclusively to bicyclists for several hours beginning at dawn. The event benefits bicycling advocacy work in the region by the Active Transportation Alliance, formerly known as the Chicagoland Bicycle Federation. Since 2004, Bike The Drive has been held on the Sunday of Memorial Day weekend. In 2006, an estimated 20,000 riders participated in the event. read more