In the Netherlands we have trains with the cab above the passenger compartiment[1][2] but the national rail service has recently revised these and welded shut t

In the Netherlands we have trains with the cab above the passenger compartiment[1][2] but the national rail service has recently revised these and welded shut the passenger walk-through coupling due to maintenance costs and frequent breakdowns of the many moving parts. [1] photo: https://upload.wikimedia.org/wikipedia/commons/thumb/c/cf/NS_Koploper_ICM_4227_verlaat_Utrecht_Centraal.jpg/1200px-NS_Koploper_ICM_4227_verlaat_Utrecht_Centraal.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/c/cf/NS... [2] video of the walk-through coupler: https://www.youtube.com/watch?v=mIi2CDYG7jc https://www.youtube.com/watch?v=mIi2CDYG7jc