Part of a main Croxley Green road will be closed until next month so investigations can be carried out for the impending rail link.

Motorists can expect delays on A412 Watford Road as the central reservation between the Watford Road and Rickmansworth Road roundabouts is shut in both directions.

The lane closure is to allow for Croxley Rail Link investigations to be carried out.

The work, which is being carried out by Hertfordshire County Council, is due to be completed on April 3.