> It should be difficult or impossible for a driver unfamiliar with a route to cause a crash.
This is a question that's occurred to me in a different context. In Shanghai, there are subway stations where the passenger area is separated from the tracks by a floor-to-ceiling wall, making it impossible to drop something onto the tracks, fall onto the tracks, or get pushed onto the tracks.
There are also stations where there's no wall, and anyone can just shove you onto the tracks at any time.
The presence of a wall is highly predictable: newer stations have them, and older stations don't.
Should the older stations be renovated? That would be an increase in safety. It would also be a pretty substantial expense to address a mostly nonexistent problem. The wall is a good idea and it makes sense to include it when you're constructing a new station. But that doesn't mean it makes sense to add it to an existing station.
This is a question that's occurred to me in a different context. In Shanghai, there are subway stations where the passenger area is separated from the tracks by a floor-to-ceiling wall, making it impossible to drop something onto the tracks, fall onto the tracks, or get pushed onto the tracks.
There are also stations where there's no wall, and anyone can just shove you onto the tracks at any time.
The presence of a wall is highly predictable: newer stations have them, and older stations don't.
Should the older stations be renovated? That would be an increase in safety. It would also be a pretty substantial expense to address a mostly nonexistent problem. The wall is a good idea and it makes sense to include it when you're constructing a new station. But that doesn't mean it makes sense to add it to an existing station.