THE cost of Glasgow Subway travel for passengers who buy paper tickets is to increase from next month, but rises will be pegged for commuters who have one of the new plastic smartcards.

Strathclyde Partnership for Transport (SPT) is expected to agree the new fares when it meets on Friday.

More than 6000 smartcards have been issued since the ticketing system was introduced in October.

Single journey prices will remain the same on smartcards, at £1.40 for an adult and 70p for a child.

But for those using paper tickets, an adult single increases by 20p to £1.60, a return by 40p to £3 and an all-day ticket by 20p to £4.

The cost of a seven day adult ticket goes up by £1 to £13, with the cost of a 28-day ticket rising £5 to £50. SPT has also introduced a six-month ticket costing £250 for people with a smartcard and a 12-monthly ticket at £450.

Gordon Maclennan, SPT chief executive said: "SPT has spent the last few months introducing smart technology.

"It replaces an out of date system that's been in use since the 1970s and was long overdue for replacement.

"It also included bringing in smartcards, with great benefits, and getting rid of unsustainable products."