A train service travelling between Glasgow and Oban has been dubbed “the Polar Express” after commuters complained of freezing temperatures.

Commuters on early services on the West Highland Line train said broken heaters and leaking windows and doors have seen passengers wrap up in several layers.

Locals who have been campaigning for changes have compared it to the train bound for the North Pole in the 2004 Tom Hanks film The Polar Express.

ScotRail said that it was looking into “longer-term solutions” which could improve the service.

ScotRail’s fleet of class 156 trains operate on the West Highland Line use excess heat from their diesel engines for heating carriages.

Temperatures inside the trains plummet overnight and then it can take a significant amount of time for them to heat up – particularly during winter.

The engine could be run and revved in advance to heat up the carriages before passengers board, but the noise could disturb Oban residents and would require staff to be available even earlier for the very first trains.

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