Guam’s Unusual Rule on Bicycle Horns

Guam, a U.S. island territory in the Western Pacific, reportedly has an unusual transport-related custom regarding bicycle horns. According to local lore and some historical sources, bicycles are expected to be equipped with horns or bells that emit a distinctly different sound from motor vehicle horns. This practice allegedly arose from efforts to reduce confusion on narrow island roads where cars, buses, and bicycles often share lanes in close quarters. The idea was to ensure that pedestrians and drivers could easily distinguish a bicycle approaching from a motor vehicle, enhancing safety in a uniquely informal manner. While this rule is not widely documented in formal legal codes, it remains a curious piece of Guam’s road culture, blending practical safety concerns with island traditions and informal enforcement by the community. Visitors and locals have noted this peculiar expectation in passing, contributing to its status as an intriguing regional quirk in transportation customs. However, concrete evidence of this as an official law remains elusive, situating it more solidly in local lore than confirmed statute.