TRAIN delays on Scotland's busiest rail route could become far worse after a decision to scale back a £1 billion investment programme, senior industry figures have warned.

Revised plans to electrify the line between Glasgow and Edinburgh were branded "potentially disastrous" yesterday as it emerged that electrification of alternative routes used when problems hit the main commuter route had been mothballed.

It is claimed passengers could be left waiting hours for the route to be re-opened in the event of glitches with trains, infrastructure or weather affecting the main line via Falkirk.

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