Roads can tolerate a lot of damage and be repaired whilst still in use (at less capacity). Capacity might fall but repairs are signalled in advance and people c

Roads can tolerate a lot of damage and be repaired whilst still in use (at less capacity). Capacity might fall but repairs are signalled in advance and people can plan around them, traffic will flow anyway. In places with big rail networks you're going to hear "I didn't make it into work this morning because of signal failures" really often. And when railways are repaired they will be totally closed for months. They're just way more brittle and unable to degrade gracefully.