Abstract: A bicycle proximity warning device comprising: a pressure tube positioned in the ground or on a paved path or roadway adjacent an area where bicyclists may be present; a pressure switch capable of creating and communicating an electrical signal upon application of a pressure pulse in the pressure tube caused by a cyclist crossing the pressure tube on a bicycle or other non-motorized vehicle; a timer circuit electrically connected to the pressure switch wherein upon receiving an electrical communication from the pressure switch, the timer circuit is activated for a predetermined period of time; and an illuminated signal portion electrically connected to the timer circuit wherein upon activation of the timer circuit, the signal portion is illuminated for the predetermined period of time the timer circuit is activated for.