Slam-door carriages will be used to ease overcrowding on a busy commuter route, First ScotRail has said (link below.)
http://news.bbc.co.uk/1/hi/scotland/edinburgh_and_east/7407347.stm

The company has appealed for six old carriages to be hauled by a locomotive on the Fife circle line between Kirkcaldy, Dunfermline and Edinburgh.

First ScotRail wants to introduce two extra services a day from May 2009 through to December 2010, running at peak times.

The temporary introduction of hauled trains would fill a gap until the electrification of the Airdrie to Bathgate route. That would free up additional diesel trains to run on the Fife line.


This is interesting, given that First Great Western ruled out a similar solution when I suggested it in January 2008 :

Lee, Tom, I've looked at the story and see it illustrated with some real old carriages.   

Wasn't there some change in the law with regard to slam door stock and central locking which meant that heritage dmus (at least) could no longer be used on main line services.  And some sort of modification done on the Aylesbury to Princes Risborough and Cardiff Bay trains, which are being run using stock from that generation?  How does this effect loco hauled slam door?  Is this law different in Scotland?

The Aylesbury to Princes Risborough, Cardiff Bay services both have a form of secondary door locking via use of an automatic lock and magnets (very similar to that used on the HST fleet). The Lymington Pier shuttles have the same problem, and are locked via the use of powerful electromagnets.

In order for stock to run on the mainline in passenger service - there must be at least some form of secondary door locking that people can use (on many railtours, this is just a small lock on the door).