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Ratio of Speed to Stopping Distance
§ 46.2-880. Tables of speed and stopping distances.
All courts shall take notice of the following tables of speed and stopping distances of motor vehicles, which shall not raise a presumption, in actions in which inquiry thereon is pertinent to the issues:
|
SPEED IN |
AVERAGE STOPPING DISTANCES |
TOTAL STOPPING DISTANCES |
||||
|
Miles per Hour |
Feet per Second |
Automobile Brakes |
Truck Brakes |
Average Driver |
Automobiles |
Trucks |
|
10 |
14.67 |
5 |
7 |
11 |
16 |
18 |
|
15 |
22.0 |
12 |
17 |
16 |
28 |
33 |
|
20 |
29.34 |
21 |
30 |
22 |
43 |
52 |
|
25 |
36.62 |
32 |
47 |
27 |
59 |
74 |
|
30 |
44.0 |
47 |
67 |
33 |
80 |
100 |
|
35 |
51.3 |
63 |
92 |
38 |
101 |
130 |
|
40 |
58.7 |
82 |
120 |
44 |
126 |
164 |
|
45 |
66.0 |
104 |
152 |
50 |
154 |
202 |
|
50 |
73.3 |
128 |
187 |
55 |
183 |
242 |
|
55 |
80.7 |
155 |
227 |
61 |
216 |
288 |
|
60 |
88.0 |
185 |
270 |
66 |
251 |
336 |
|
65 |
95.3 |
217 |
316 |
71 |
288 |
387 |
|
70 |
102.6 |
252 |
367 |
77 |
329 |
444 |
|
75 |
109.9 |
289 |
422 |
82 |
371 |
504 |
|
80 |
117.2 |
328 |
480 |
88 |
416 |
568 |
|
90 |
132.0 |
425 |
607 |
99 |
524 |
706 |
|
100 |
146.6 |
514 |
750 |
109 |
623 |
859 |
The courts shall further take notice that such tables are the result of experiments made with motor vehicles, unloaded except for the driver, equipped with four-wheel brakes, in good condition, on dry, hard, approximately level stretches of highway free from loose material.
(Code 1950, § 46-212.2; 1956, c. 600; 1958, c. 541, § 46.1-195; 1989, c. 727.)
http://www.jmu.edu/safetyplan/vehicle/generaldriver/stoppingdistance.shtml