Ottawa's mayor is pushing for the current bus terminal on Catherine Street to move its operations to the Via Rail train station near Vanier Parkway.

CTV Ottawa has learned Larry O'Brien has formally asked Via Rail to allow the bus station to move into the train station on Tremblay Road.

"There's a big facility there and that big facility could be in fact used as well by both Greyhound and the Via," O'Brien told CTV Ottawa on Thursday.

"It works really well in Vancouver and the east coast -- it improves traffic for both."

The mayor has been pushing the idea behind the scenes for months, and says most of the players are already onside.

O'Brien's latest push includes writing a letter to Via Rail's president on Thursday, asking for final approval.

"I think we now have all the players warm to the idea. It's time for the public to have a say on that as well," said O'Brien.

While some train travellers told CTV Ottawa they welcome the idea, taxi drivers aren't so eager.

"It will be a mess -- a mess! Believe me," said taxi driver Ziad Kandaloft.

If the plan gets final approval, there's still lots of work to be done. However, O'Brien says Greyhound could be ready to make the move within three or four months.

With a report from CTV Ottawa's Graham Richardson