The rail line was originally scheduled to open in 2005

The project, which was originally scheduled for completion in 2005, has experienced years of delays.

More than �70m has been spent to upgrade the disused rail track between Stirling, Alloa and Kincardine to support passenger and freight services.

Transport Scotland refused to confirm the re-opening date but said work was due for completion in the spring.

An hourly direct rail passenger service will operate between Alloa, Stirling and Glasgow.

Passengers travelling to Edinburgh will be able to do so via connecting services at Stirling station.

The 13-mile stretch of track, which has not been used for 40 years, will end at Longannet power station.

'Complete installation'

The initial �37m cost of the route rose to �55m after old mine workings were discovered along the track.

However, the final bill is expected to exceed �70m after safety work was carried out at a level crossing and signalling enhancements were made.

A spokeswoman for Transport Scotland said: "All signalling and telecommunication installation works are complete and testing of equipment is well progressed.

"The level crossings at Cambus and Blackgrange are substantially complete.

"The project will undertake major engineering works in the Stirling area over the Easter weekend.

"These will complete installation of most of the equipment required to allow the new railway to tie into the existing operational railway."