A new railway viaduct in Reading has been given the go-ahead by the local council.
Currently, there is a problem with a bottleneck at Reading and the viaduct is designed to stop slow freight trains from delaying faster, mainline services.
These will run across the viaduct, while freight trains will be diverted underneath.
Following its completion in 2015, Network Rail will replace an existing bridge at Cow Lane with a wider and safer bridge with two lanes of traffic, a footpath and cycle lane.
Bill Henry, director of Network Rail's improvement scheme at Reading said: "We're delighted that Reading Borough Council has given the green light for the development of the viaduct."
Construction work on the new structure is expected to start in 2013.
Network Rail recently finished the new western concourse at King's Cross Station in north London.
The new space is three times larger than the old concourse and has improved links to both the London Underground network and St Pancras station.