High Quality Content by WIKIPEDIA articles! United States numbered bicycle routes are regional bicycle routes in the United States. They are the bicycle equivalent to the system of United States numbered highways. The system consisted of only two routes from its inception in 1982, until its first major expansion in 2011. As of 2012 eight parent routes and two child routes exist. Also, many proposed routes have recently moved into planning stages as of 2010. The planned routes largely overlay existing roads and bicycle path networks.