When you must walk on the highway, which side should you walk on to watch for approaching vehicles?

Walking on the left side of the highway is advisable because it allows pedestrians to face oncoming traffic. This positioning enhances safety since individuals can see vehicles approaching and react appropriately. Being able to make eye contact with drivers and being aware of their movements can significantly reduce the risk of accidents. It also positions pedestrians further away from the road's edge, providing an additional buffer from passing vehicles.

The right side, while it might seem logical, does not allow for visibility of approaching cars, making it more dangerous. Walking in the middle of the road is unsafe and illegal, as it poses a significant risk not only to the pedestrian but also to drivers. Utilizing sidewalks, when available, is always the best option for pedestrian safety, as it separates walking paths from vehicular traffic entirely. Walking on the left side effectively balances visibility and safety in scenarios where a sidewalk is not present.