The city had completed 436 km of bike lanes as of the end of March. But amid the concerns from citizens, "we recognise that we must further accelerate the development of this infrastructure," the Tokyo official said. Tokyo aims to expand the network to 900 km by 2030 and 1,800 km during the 2040s. Bike lanes broadly consist of two types: those created along the edges of roadways and those established by dividing pedestrian sidewalks into separate zones. Tokyo is focusing on expanding dedicated bike lanes on roadways, designated where at least 1.5 meters of road width is available along the edge. These lanes are designated exclusively for bicycle traffic. Tokyo generally puts them on roads where vehicle speeds exceed 40 kilometres per hour.