Fog in UAE: Speed limits reduced on major roads Web Report/Dubai Motorists are urged to follow the revised speed limits while driving in foggy weather. Fog covered various parts of the UAE on Wednesday morning, affecting visibility. The Abu Dhabi Police announced activation of speed reduction to 80kmph on major external roads to ensure safety of motorists. The National Centre of Meteorology issued a fog alert and said it’s likely to continue on Wednesday morning with visibility reducing to less than 1,000 metres. In Abu Dhabi, the police urged motorists to follow the revised speed limits while driving in foggy weather.