**Vehicles for people with reduced mobility** must travel on the **shoulder** when there is no road or part of it specifically designated for them. The shoulder is the part of the road located next to the main lanes, and it is where certain vehicles, such as bicycles, mopeds, and vehicles for people with difficulty moving, must travel, provided the shoulder is **passable and sufficient**.

Additionally, personal mobility vehicles, such as electric scooters and electric unicycles, are prohibited from traveling on **motorways and highways**, which reinforces the need for these vehicles to use the shoulder on roads where there is no specific lane for them. This ensures their safety and that of other road users.