Fog is one of the most dangerous conditions on UAE roads: visibility can drop from kilometres to a few hundred metres within minutes, usually early in the morning. Abu Dhabi responds with a smart system that lowers the speed limit on major roads to 80 km/h when visibility falls. In 2026 alone, The National reported such cuts in February, July and August, including on Sheikh Mohammed bin Rashid Road and the Abu Dhabi–Al Ain Road.
The radars follow automatically
The reduced limit appears on overhead and roadside electronic signs, and Abu Dhabi Police send alerts through their apps and social media. The radars reset to the temporary limit automatically. Because Abu Dhabi has no buffer, a camera records you at 81 km/h — on a road you normally drive at 120.
How to drive in fog
- Watch the electronic signs, not the fixed ones: in fog, the electronic limit applies.
- Use dipped headlights and fog lights; never hazard lights while moving.
- Keep a much longer gap — tailgating in fog is how chain collisions start.
- Do not change lanes unless you must; sudden swerving was the single biggest cause of accidents in the UAE in 2025.
What Ghost does — and does not — know
Ghost warns before each known camera and shows the posted limit stored for it. A temporary fog limit on an electronic sign is not in any camera database. In fog, the electronic sign wins — follow it.
