What are the technological and operational restrictions that would prevent DOO been brought it in at Northern?
Probably not very many, really. Converting the older stock to run DOO is probably prohibitively expensive, but if the new stock has the cab monitors and decent CCTV then very little. Most of the trains are significantly smaller than trains that run DOO in the south east, so you don't even have that issue.
Platform management wouldn't even be that much of an issue, at the big stations and stations with a big curve/gap (e.g. Shipley) you'd have a despatcher. Other than that, I can't see many operational reasons why you couldn't have DOO, unless they do something stupid like try and run the S&C or Tyne Valley as DOO.
jcollins said:
Most passengers think driver only operation and the driver being the only member of staff on board a train are the same thing.
At the risk of repeating oneself yet again, that is because DOO/DCO is the same thing as the only member of safety staff on board being a driver. Even in Strathclyde the Ticket Examiner has no safety responsibilities. And that's really why passengers want a visible staff presence- they want someone there to sort it when things go wrong. A ticket examiner is no use when the poo hits the fan because they have no power and no responsibility.
You may agree with drivers being in sole charge, or you may not, but please don't insult our intelligence by claiming that DCO is anything other than getting rid of safety staff.