Part of the TT course in the west of the Island will have a temporary speed limit and traffic lights next week.
The Department of Infrastructure says work's taking place to clear foliage from a roadside wall near Black Dub.
It means there'll be a 30mph limit on either side of the TT landmark as well as traffic lights during working hours.
The DOI says weather permitting, the work will finish before Monday, March 3.
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