One issue night trains face when being reintroduced/introduced upon routes would be Urban sprawl and development.
In many Major towns and along those routes can and do become developed upon. You then face noise factors that you did not have before in reintroducing night trains and for introduction upon new routes - more so potentially an issue.
Whilst night trains don't need to go full speed and for many, more viable for comfort and running costs to run them slower. But in area's of urban sprawl, and noise regulations can and will prove an issue in such usage. Which is a shame but a major consideration today.
But equally, many transport avenues are under utilised and overlooked. Canals for one were a big thing decades ago and all but now abandoned in many parts as a means of transporting goods. Which is a shame as sometimes you just don't need it moved as quick as possible.
In many Major towns and along those routes can and do become developed upon. You then face noise factors that you did not have before in reintroducing night trains and for introduction upon new routes - more so potentially an issue.
Whilst night trains don't need to go full speed and for many, more viable for comfort and running costs to run them slower. But in area's of urban sprawl, and noise regulations can and will prove an issue in such usage. Which is a shame but a major consideration today.
But equally, many transport avenues are under utilised and overlooked. Canals for one were a big thing decades ago and all but now abandoned in many parts as a means of transporting goods. Which is a shame as sometimes you just don't need it moved as quick as possible.