On urban roads that are not through roads, it is **not mandatory** for parked vehicles to have their **position lights** on if the lighting allows them to be distinguished from a sufficient distance. This is because position lights are mainly used when there is little natural light, such as when driving at night, in tunnels, or on dark days. However, when the vehicle is stationary, the position lights are only turned on if necessary to be visible, for example, on a poorly lit road. In well-lit urban areas, it is not necessary to turn them on if the vehicle is clearly visible.