Fog continues across UAE, heavy traffic on key roads Web Report/Dubai Photo by Juidin Bernarrd Photo by Juidin Bernarrd The police also urged drivers to follow the instructions shown on smart boards installed on various roads. Heavy fog affected visibility across the UAE on Thursday morning, prompting the authorities to reduce speed limit on some major roads. The fog also caused huge tailbacks on Sharjah-Dubai roads. Motorists experienced heavy traffic on Al Ittihad Road and Sheikh Mohamed Bin Zayed Road. The Sharjah Police urged drivers to take caution while driving in unstable weather conditions. Earlier in the morning, the Abu Dhabi Police announced speed limit reduction on major roads from and towards the Capital to 80kmph. On its official Twitter page, the police said speed reduction system had been activated on Mohammed Bin Rashid road (Abu Dhabi - Dubai, Maktoum Bin Rashid road (Abu Dhabi – Dubai), AbuDhabi-Al Ain Road (Al Mafraq - Al Khaznah and Sweihan-Al Hiyar), Sheikh Khalifa Bin Zayed International road ( Al Nof-Al Mirfa ), Al Fayah Road (Truck Road) and Abu Dhabi - Sweihan road. By 7.50am, the police announced bringing the speed limits on Abu Dhabi roads back to normal.