SPT is looking at where new lines could be built

Officials at Strathclyde Passenger Transport (SPT) want to build new stations outside the circular route and possibly beyond the city boundary.

The subway was built in 1896, but has never been extended beyond the original 15 stations.

SPT bosses hope to get approval for the cost of employing consultants to look at the options.

They said that new stations could be built in the Harbour development, the west end, east end and the southside of the city in about a decade.

SPT chairman, Councillor Alistair Watson, said the system could perhaps be extended beyond the city boundary and has not ruled out a link to Glasgow Airport.

He said he believes there is now the political will to fund the expansion and he is hopeful the plans will become a reality.

Speaking on BBC Radio's Good Morning Scotland programme, he said: "The Harbour redevelopment is a major opportunity for the regeneration of the east end, the expansion of the west end and the southside.

"If we can extend the tentacles of this system beyond Glasgow's boundaries then I think we can do it."