Burgos is a Spanish northern city in which at least one bike line goes on the road. This time it has not any physical separation with other vehicles. The fact of being designed next to the bus line, on its right, protects it against a lack of civic car drivers behavior which can cause bike accidents. In addition, bikers cycle more secure as bus run frequency is considerable lower than cars one. Moreover, the bike line follows the same route as the bus does. This is important as this way the optimum path is guaranteed avoiding unnecessary turns.