The idea is to improve Tokyo bikeability taking as starting point the existing bikeable roads in Tokyo. Those streets represented a qualitative designed for bike. Re-named “fragment” because of their characteristic feature if being interrupted at some point – feature that also allow these streets to be distinguished by low traffic – or being accidentally found while riding. The aim is not to establish a fixed network between those. The intention is instead to provide small interventions on these streets, according existing potential of those situations, leaving the free choice to combine these “bikeable fragments” with other situations (local streets or main streets) according to the needs of the users.