The Rosslyn Bikeometer is the first of its kind on the East Coast and sixth in the United States, preceded by versions in Portland, Seattle and California. It provides a highly visible, engaging and fun view of the volume of bike usage on the Custis Trail in Arlington. Ride past the Bikeometer and notice the daily bike count tick off another digit and acknowledge another car-free trip in Arlington County. The information displayed is real time and also includes month and year-to-date data. Expect to see some big numbers as the year goes on since the Custis trail accommodates around half a million bike trips per year!