What is one benefit of wide underpasses on expressways?

Wide underpasses on expressways are particularly beneficial because they provide good escape paths. In the event of an emergency, such as an accident or vehicle breakdown, drivers and passengers have more space to maneuver or evacuate safely from the roadway. This can be crucial in situations where immediate access to safety is required, allowing individuals to quickly and effectively leave the area of danger. While other features, such as aesthetics or entry points, might be considered advantageous as well, the safety aspect of having adequate space for escape is a primary design purpose of wide underpasses.