Transcript The Risk of Distracted Driving 11/6/2015 Complacency Kills is the old saying.

The Risk of Distracted Driving
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11/6/2015
Complacency Kills is the old
saying. Then why aren’t you
wearing your seat belt and
watching your speed?
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11/6/2015
What are the safety precautions to be followed
prior to and during driving?
Seats
 Radio
 Gas

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11/6/2015
What distance will your vehicle travel before it
comes to a complete stop at 70 mph?
Reactionary Distance
 Braking distance
 Total Distance
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What is Reactionary Distance and how much
time does it consume?
Table II—Stopping Distance in Feet
Vehicle speed Service brake
in miles per
PFC 0.9
hour
(1)
20
32
25
49
30
70
35
96
40
125
45
158
50
195
55
236
60
280
Emergency brake
PFC 0.9
PFC 0.9
PFC 0.9
PFC 0.9
PFC 0.9
PFC 0.9
PFC 0.9
(2)
35
54
78
106
138
175
216
261
310
(3)
32
45
65
89
114
144
176
212
250
(4)
35
54
78
106
138
175
216
261
310
(5)
38
59
84
114
149
189
233
281
335
(6)
30
43
61
84
108
136
166
199
235
(7)
83
123
170
225
288
358
435
520
613
(8)
85
131
186
250
325
409
504
608
720
(1) Loaded and Unloaded Buses.
(2) Loaded Single-Unit Trucks.
(3) Loaded Tractors with Two Axles; or with Three Axles and a GVWR of 70,000 lbs. or less; or with Four or More Axles and a GVWR of 85,000 lbs. or
less. Tested with an Unbraked Control Trailer.
(4) Loaded Tractors with Three Axles and a GVWR greater than 70,000 lbs.; or with Four or More Axles and a GVWR greater than 85,000 lbs. Tested
with an Unbraked Control Trailer.
(5) Unloaded Single-Unit Trucks.
(6) Unloaded Tractors (Bobtail).
(7) All Vehicles except Tractors, Loaded and Unloaded.
(8) Unloaded Tractors (Bobtail).
PFC = Peak Friction Coefficient
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What distance does your vehicle travel at 20,
40, 60, 70, and 100 mph?
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Have you ever thought about that distance?
Formula 1.466 x your speed = feet per second
20 mph = 29.32 feet per sec.
40 mph = 58.64 feet per sec.
60 mph = 87.96 feet per sec.
70 mph = 102.62 feet per sec.
100 mph = 146.6 feet per sec.
So every 4 seconds at 60 mph you have traveled
351.84 feet over the length of a football field. Keep 4
seconds in mind for later.
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11/6/2015
Why is it important to know the distance you are
traveling?
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It enables us to be more effective at threat evaluation,
stopping distance, collision avoidance, etc…
At 20 mph you are traveling 29.32 feet per second and
it takes you .75 of a second to react how much
distance have you covered?
15 feet at 20 mph, the child stepped out at the front of
a car and you were 1.5 car lengths away when the
child stepped out are you able to stop prior to hitting
the child?
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11/6/2015
How far in front of your vehicle do the vehicle’s
low beams project out on an average?
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So we stated earlier that a vehicle moving 70
mph travels 102.62 feet per second. On a good
day your lights project out between 150 to 200
feet, doesn’t leave much time if something bad
happens. So if you are on the low end 150 feet
and you are moving 102.62 feet per second
there is only about 47 feet left to react in, is that
enough.
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11/6/2015
How far in front of your vehicle do the vehicle’s
high beams project out on an average?

So we stated earlier that a vehicle moving 70
mph travels 102.62 feet per second. On a good
day you lights project out between 250 to 300
feet, doesn’t leave much time is something bad
happens. So if you are on the low end 150 feet
and you are moving 102.62 feet per second
there is only about 47 feet left to react in, is that
enough.
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11/6/2015
What is the most common night time driving
error?
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Over driving headlights.
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11/6/2015
When we are driving how do we receive most of
the information that we are processing?
Sight
 90%
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11/6/2015
How long are your eyes off the road when you
are texting? (Average time)
4.3 to 4.6 seconds
 Type of driving is distracted driving
 List other distractions in the vehicle

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So we stated earlier that a vehicle moving 70
mph travels 102.62 feet per second. If your
eyes are off the road for just 4.3 seconds you
have traveled 441.26 feet. That is almost 1 and
½ football fields. That is a long time for
something to happen. We all have done it.
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11/6/2015
If you are involved in collision avoidance
where should you be looking?
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Where you want the vehicle to go.
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11/6/2015
Where should we be steering during
collision avoidance most of the time?
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Where you want the vehicle to go and usually
at where the obstacle is coming from vice
where it is going.
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Summary
This is a class that could take up to 40 hours to
teach with Non Emergency Vehicle Operations
Practical’s. This class is designed to get you to
think about what you and your vehicle are
doing while on the road.
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Questions?
Comments?
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11/6/2015