*The 30 mph limit usually applies to all traffic on all roads with street lighting unless signs show otherwise. † 60 mph (96 km/h) if articulated or towing a trailer. 126. Stopping Distances.   Drive at a speed that will allow you to stop  well within the distance you can see to be clear. You should  ● leave enough space between you and the vehicle in front so  that you can pull up safely if it suddenly slows down or stops.  The safe rule is never to get closer than the overall stopping  distance (see Typical Stopping Distances diagram, shown  below)  ● allow at least a two-second gap between you and the vehicle  in front on roads carrying faster-moving traffic and in tunnels  where visibility is reduced. The gap should be at least  doubled on wet roads and increased still further on icy roads  ● remember, large vehicles and motorcycles need a greater  distance to stop. If driving a large vehicle in a tunnel, you  should allow a four-second gap between you and the vehicle  highwaycodeuk.co.uk 68 