FOLLOW POSITION
REMEMBER Lord Justice Blair’s
Theory
1.5 x SPEED
= feet/Metres per second. Braking/Thinking/Overall Stopping Distances
REMEMBER
“ONLY A FOOL BREAKS THE TWO SECOND RULE”
SPEED
FEET PER SEC
METRES PER SEC
MULTIPLIER
BRAKING
DISTANCE
(FEET)
(METRES)
THINKING
DISTANCE
(FEET)
(METRES)
OVERALL STOPPING
(FEET)
(METRES)
30
45
13.73
1.5
45
13.73
30
9.15
75
22.88
40
60
18.30
2
80
24.40
40
12.20
120
36.60
50
75
22.88
2.5
125
38.13
50
15.25
175
53.38
60
90
27.45
3
180
54.90
60
18.30
240
73.20
70
105
32.03
3.5
245
74.73
70
21.35
315
96.08