The Federal Transit Administration (FTA) has established a formal policy for determining whether a pedestrian or bicycle improvement qualifies for FTA funding by defining a radius around a public transportation stop or station.

The policy states that, “All pedestrian improvements located within one-half mile and all bicycle improvements located within three miles of a public transportation stop or station shall have a de facto physical and functional relationship to public transportation.  Pedestrian and bicycle improvements beyond these distances may be eligible for FTA funding by demonstrating that the improvement is within the distance that people will travel by foot or by bicycle to use a particular stop or station.”