If you park on the road when it's foggy, you should:

• Try to find a place to park off the road if possible, to reduce risk to other vehicles.
• If parking on the road is unavoidable, park facing in the same direction as the traffic.
• Leave your parking lights or sidelights switched on and make sure they are clean so other road users can see your vehicle.
• Avoid parking near bends, junctions, or crossings where visibility is already limited.
• Ideally, park in a recognized parking place or lay-by.
• Turn on hazard lights if you have pulled completely off the road.
• Use the emergency brake when parked.
• Avoid parking in high-speed roads if possible.

These guidelines help improve your vehicle's visibility to others and increase safety in the low visibility conditions fog creates.