In November Transport for London announced that construction of the Metropolitan Extension, formerly the Croxley Rail Link, will start next year.
The project is set to give residents a faster route into the capital.
Politicians and business leaders claim the link will give a huge boost to the town's economy.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here