Motorists are being reminded Lord Street in Douglas is now one-way from the Old Police Station to Ridgeway Street.
Police have been receiving reports of drivers ignoring this, and going against the system.
It comes following work starting on the final phase of the Lord Street Regeneration Scheme yesterday,
Market Hill will be fully reconstructed and the Lord Street and Victoria Street pedestrian crossings will also be modernised as part of the project - which will take around 7 months to complete.
Well-known farm in the west up for sale
Pet foodbank needs your help!
How much cash can government raise in 10 days, asks MHK
LegCo considers meeting on a different day
Extra promenade bus facilities would cost estimated £735k
Medieval cross returned home to Royal Chapel
Arbory MHKs in "parasite politicians" spat
Tyson Fury's boxing glove sold for £7k in charity auction