People in wheelchairs, considered as **vehicles for people with difficulty moving**, can travel on the road under certain conditions.

- **Passable shoulder**: If the road has a passable shoulder, people in wheelchairs must travel on it. The shoulder is a part of the road intended for certain vehicles that cannot or should not travel on the main lanes.

- **Roadway**: In case the shoulder is not passable or does not exist, people in wheelchairs can travel on the roadway, but only using the essential part of the lane. This ensures they can move safely when there is no shoulder available.

It is important to note that, although people in wheelchairs can travel on roads, they cannot do so on **motorways or expressways**, as these roads have specific restrictions for certain types of vehicles, including those for people with reduced mobility.