A feasibility study has been undertaken into extending Crossrail to Watford.
Transport Secretary Patrick McLoughlin said:
We are investing record amounts to build a world-class railway, so it is vital we seize every opportunity to make the most of these once in a generation schemes. That is why I have asked HS2 Limited to work closely with the Crossrail sponsors to look at extending Crossrail services to key destinations in Hertfordshire. Not only would this be a huge boost to passengers and the local economy, it would also provide flexibility when building HS2 into Euston, making sure we create a lasting legacy for the station.