Motorists could receive fines of Dh400 from Monday for travelling below 120kph on sections of a major Abu Dhabi motorway.
The new traffic measures were introduced at the start of April on the first and second left-hand lanes of Sheikh Mohammed bin Rashid Road.
The maximum speed limit for the route, which links Abu Dhabi and Dubai, will remain at 140kph.
The third lane and the last lane, for use by heavy vehicles, will not include minimum speed requirements, police confirmed.
Drivers who have failed to maintain the set speed limit since its implementation have received warnings from Abu Dhabi Police.
But financial penalties will be imposed for failing to stick to the speed limit from May 1.
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