Adequate Distance & Speed Limits

Adequate distance in Front

You should always try to drive at a speed so that you can stop within the distance you can see to be clear. Have a look at the Emergency Stop Lesson again so you can refresh your memory of the stopping distances of your car a various distances. Try to remember that these distances are for normal cars with good Brakes, good tyres in dry conditions and the driver is alert. If the weather is against you will need to give extra room. When driving at speed, if you are travelling at over 40 mph then the minimum distance you can leave is the Two Second Rule. The adequate distance means leaving a gap of two second between you and the car in front. At slower speeds you should leave at least the thinking distance between you and the car in front. If in fog or bad weather remember that it takes time for you to react & stop so NEVER get to close to the vehicle in front, only travel at a speed so you can stop in the distance you can see to be safe.

2 SECOND RULE

Adequate distance

You have been taught about adequate distance in the Highway Code about the 2 Second Rules (HC 125). I regret that I feel I have to point out that this is only a guide REALITY is different.

Let me explain adequate distance

1 mph is equal to 1.4667 feet per second: or that is 1.609344 km/h, or 0.44704 m/s

So that works out as

30 mph = 44.001 Feet x 2 Seconds = 88 ft Stopping Distance Highway Code =75 ft

30 mph = 13.422 Meters x 2 Seconds = 26.8 m Stopping Distance Highway Code = 23 m

CONSIDER THE WEATHER. BRAKING DISTANCES INCREASE BY AT LEAST DOUBLE

IN THE WET AND UP TO TEN TIMES IN ICE!

CONSIDER WHAT SPEED YOU SHOULD BE AT AND WHAT GEAR YOU SHOULD BE IN FOR YOU TO BE SAFE.

SPEED LIMITS

To know what the speed limit is for the road you are on.

As you see different vehicles have different speed limits please remember to respect them & take then into account while driving. Remember to leave adequate distance when behind traffic or planning to overtake

Stopping Distance

CONSIDER THE WEATHER. BRAKING DISTANCES INCREASE BY AT LEAST DOUBLE

IN THE WET AND UP TO TEN TIMES IN ICE!

CONSIDER WHAT SPEED YOU SHOULD BE AT AND WHAT GEAR YOU SHOULD BE IN FOR YOU TO BE SAFE.

SPEED LIMITS

To know what the speed limit is for the road you are on. 

As you see different vehicles have different speed limits please remember to respect them & take then into account while driving. Remember to leave adequate distance when behind traffic or planning to overtake

Stopping Distance

 

Type of vehicle Built-up areas* Single carriageways Dual carriageways Motorways
MPH(km/h) MPH (km/h) MPH (km/h) MPH(km/h)
Cars & motorcycles(including car derived vans up to 2 tonnes maximum laden weight) 30(48) 60 (96) 70 (112) 70 (112)
Cars towing caravans or trailers(including car derived vans and motorcycles) 30(48) 50 (80) 60 (96) 60 (95)
Buses, coaches and minibuses(not exceeding 12 metres in overall length 30(48) 50 (80) 60 (96) 70 (112)
Goods vehicles(not exceeding 7.5 tonnes maximum laden weight) 30(48) 50 (80) 60 (96) 70† (112)
Goods vehicles(exceeding 7.5 tonnes maximum laden weight) 30(48) 40 (64) 50 (80) 60 (96)
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