While driving through a residential area at 30\text{ mph} (48\text{ km/h}), you encounter … — UK Driving Theory Test

While driving through a residential area at $30\text{ mph}$ ( $48\text{ km/h}$ ), you encounter a stretch of road covered in compacted snow and ice. According to The Highway Code, what is the maximum total stopping distance you should anticipate under these icy conditions?

A
$23\text{ metres}$ ( $75\text{ feet}$ )
B
$46\text{ metres}$ ( $150\text{ feet}$ )
$230\text{ metres}$ ( $750\text{ feet}$ )Cevap
D
$140\text{ metres}$ ( $450\text{ feet}$ )

Cevap

230\text{ metres}

(

750\text{ feet}

)

According to The Highway Code, the standard stopping distance at

30\text{ mph}

on a dry road is

23\text{ metres}

(

75\text{ feet}

), consisting of

9\text{ metres}

thinking distance and

14\text{ metres}

braking distance. Under icy conditions, severe loss of tyre traction can increase stopping distances up to ten times, resulting in a total distance of up to

230\text{ metres}

(

750\text{ feet}

Adım Adım Çözüm

Determine the standard total stopping distance on a dry road at

30\text{ mph}

Thinking distance is

9\text{ metres}

(

30\text{ feet}

) and braking distance is

14\text{ metres}

(

45\text{ feet}

), giving a total baseline stopping distance of

23\text{ metres}

(

75\text{ feet}

The Highway Code establishes baseline stopping distances for vehicles under normal, dry conditions.

Apply the official weather multiplier for icy and snowy road conditions.

Multiply the baseline stopping distance by

10

23\text{ metres} \times 10 = 230\text{ metres}

(

75\text{ feet} \times 10 = 750\text{ feet}

The Highway Code specifies that stopping distances can increase by up to ten times on icy or snow-covered surfaces.

Anahtar Kavram

Highway Code stopping distances under adverse weather conditions (tenfold increase on ice)

Tahmini Süre:1m 15s

Soru

Cevap

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