More trains are set to run on the East Coast mainline between Leeds and London, rail firm GNER has announced.
GNER hopes to run an extra 12 services each day on the line
The opening of a new line near Grantham, diverting local trains off the main track, will allow an extra 12 services a day on the high-speed route.
The expansion, subject to government approval, equates to 1.8m more seats a year on the 200-mile route.
The 12 extra weekday services and some additional weekend trains could be running by December 2006.
The opening of the so-called Allington Chord, a track which allows slower local services to be moved off the mainline around Grantham, means GNER can run 65 trains each day on the route.
Currently the firm runs 53 trains north and south between the two cities.
Christopher Garnett, chief executive of GNER said: "We are very keen to start these extra services as soon as possible.
"Leeds-London is the biggest and fastest growing long-distance rail market in the UK and these additional trains will deliver a 'walk up and go' railway and many more connection opportunities."