Catseyes being installed on the New Castletown Road will mean a series of daytime road closures from next week.
The DOI says work will start on Tuesday, May 6 on the stretch between Glashen Hill roundabout and Orrisdale Road.
That section will shut at 9.30am until 3.30pm.
The department says it hopes to finish the entire road by Friday 16 May.
Isle of Man is Peter Andre's Flava of the week!
Peter Andre has lavished praise on the Isle of Man after visiting for the Fury wedding at the weekend.
Evri preparing to pull out of Isle of Man?
A UK website claims courier firm Evri is preparing to pull out of the Isle of Man.
Get involved in Island's first BJ Week!
The Isle of Man is taking part in Better Journeys Week this week.
Can you help find stolen car?
Police are renewing appeals for help finding a stolen car.
Five green lanes to close for TT
Five Island green lanes will be shut for the TT festival this year.
Burst water main means traffic lights on TT course in Kirk Michael
There'll be temporary traffic lights on the TT course tomorrow as workers tackle a water main problem.
Organisers call off Onchan pride event expected to attract 1,500 visitors
A huge pride event in Onchan won't go ahead this year.
DEFA deletes "downright offensive" two-headed chicken logo
The Department of Environment, Food and Agriculture says it's deleted a logo described in a Freedom of Information request as "dreadful", "downright offensive" and "simply slapdash".
