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Forensic Engineering Fundamentals
book

Forensic Engineering Fundamentals

by Harold Franck, Darren Franck
December 2012
Beginner to intermediate content levelBeginner to intermediate
487 pages
17h
English
CRC Press
Content preview from Forensic Engineering Fundamentals
197Slips and Falls
V
v
is the velocity of vehicle (mph) (25 mph)
t
pr
is the perception reaction time (2.5 s)
f is the coecient of friction (.375 for V
v
= 30 mph)
D is the clearance distance from vehicle or pedestrian to nearest rail (15 )
L is the length of vehicle (65 )
W is the distance between outer rails (18 )
d
e
is the distance from driver to front of vehicle (10 )
d
τ
350 ft
(7.14)
d
H
170 ft
(7.15)
Moving Vehicle Sight Distance Calculations
For a moving vehicle or pedestrian, the distance along the highway is given by the following
equation:
dVt
V
Dd
Hvpr
v
f
e
=++++147
30
2
.
(7.16)
where
V
v
is the vehicle velocity
t
pr
is the perception/reaction time ( ...
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Publisher Resources

ISBN: 9781439878392