Douglas promenades will be one-way northbound for the summer.

The change, which applies to the promenades between its junctions with Victoria Street and Summerhill will apply from Monday, June 15 to September 8.

The Department of Infrastructure says the new programme of works will allow the project to be delivered more quickly.

As well as the one-way system, side roads such as Church Road Marina, Broadway and Summer Hill will be closed ’at various times’.

Broadway and Church Road Marina will be closed at the same time for six weeks.

To help traffic moving southbound, there will be adjustments to key junctions in Onchan and Douglas.

The site’s operating hours now be from 7.30am to 6.30pm on weekdays and from 7.30am to 3.30pm on Saturdays.

There may be some work on some Sundays.

Some of the ’noisier activities’ will not start until 8am.

There will be ’limited parking’ along the highway on the promenade during the summer but this will be fully reinstated as soon as possible.

The promenade walkway will not be open for parking as it will be used for emergency vehicles from June 15.