Mixing bicycles and buses is a safety issue. Ideally, cycle routes should be created away from bus routes, but this is not always possible in dense urban areas. On 30 km/h roads bicycles and buses can safely mix, at higher speeds they should be separated. Bus/bike lanes can strengthen the network with additional shortcuts, but only at low speeds, on short stretches and with careful design to ensure safety. They should not be used as a way to avoid tough choices.