Quiz

Question 1

Definition of Crash

Answer 1

The occurrence in a sequence of events which usually produce unintended injury, death, or property damage.

Question 2

3 times a crash is not a crash:

Answer 2

1. Homicide/ABDW
2. Suicide
3. Insurance Fraud

Question 3

Definition of Traffic Way

Answer 3

Any land way open to the public
Boundary to boundary line

Question 4

Collision

Answer 4

Involves pedestrians, parked cars, train, animals etc.

Question 5

3 causes of a crash

Answer 5

1. Human ex: driver failed to adjust
2. Environmental ex: weather
3. Mechanical ex: failure of the vehicle

Question 6

Factors of a crash:

Answer 6

Speed, rain, bald tires

Question 7

Why do we invest crashes and collisions
The 3 E’s

Answer 7

Enforcement- promoting traffic safety
Education- through education behavior can change
Engineering- P.Os are familiar with layout or roadways and the hazards.

Question 8

Pre Trip

Answer 8

The events that occur or the conditions that exist before the trip is started.

Question 9

Trip

Answer 9

Events or conditions that arise after the trip starts.

Question 10

8 events of a crash

Answer 10

1. Point of Possible Perception
2. Point of Actual Perception
3. Point of No escape
4. Encroachment
5. Point of First Contact
6. Maximum Engagement
7. Separation
8. Point of Final Rest

Question 11

Point of possible perception

Answer 11

The point place and time which a normal person could have or should have perceived the hazard.

Question 12

Point of Actual Perception

Answer 12

The point at which the operator comprehends or perceives the hazard and realizes some action is required.

Question 13

Point of No Escape

Answer 13

The place and time where the crash can not be avoided.

Question 14

Encroachment

Answer 14

When one traffic unit enters the rightful path of another traffic unit.

Question 15

Point of First Contact

Answer 15

The point of first touch between two traffic units, a fixed object or overturns.

Question 16

Maximum engagement

Answer 16

Max penetration into another traffic unit or object during collision.

Question 17

Separation

Answer 17

The point when the colliding traffic units begin to move apart or disengage and no longer influence each other.

Immediately after maximum engagement

Question 18

Point of Final Rest

Answer 18

Two types:
1. Uncontrolled- each of the vehicles involved reached their final rest position as a result of the crash

2. Controlled- the vehicles were moved to their present location prior to officers arrival.

Question 19

2 Types of Damage

Answer 19

1. Contact Damage- and damage that results from direct contact with another vehicle, pedestrian, fixed object.
2. Induced Damage- any damage that is not the direct result of contact damage.

Question 20

Grade

Answer 20

Standing on yellow double line, does the street go up or down.

Question 21

Super elevation

Answer 21

Stand on double yellow line, look left to right! Does the road go up or down.

Question 22

3 Types of Glare

Answer 22

1. Headlight - typically at night (pedestrian)
2. Fixed/Back - street light or advertising
   lights
3. Solar - sun, can make things invisible (time of day)

Question 23

3 Types of Tire Marks

Answer 23

1. Print
2. Skid
3. Scuff

Question 24

Print

Answer 24

Tire is rotating Not sliding

Question 25

Skid

Answer 25

Tire is sliding Not rotating

Question 26

Scuff

Answer 26

Tires are sliding and rotating

Question 27

Scub mark

Answer 27

Sideway movement, tire is locked or jammed

Question 28

4 ways to determine Drag Factor

Answer 28

1. Test skids
2. Drag sled
3. Electronic device
4. Pre determined tables

Question 29

3 Characteristics of a Yaw Mark

Answer 29

1. Rear wheels have to cross over front wheels
2. Diagonal Striation
3. Mark has to be curved

Question 30

3 Times a critical speed scuff CANNOT be used:

Answer 30

1. If the vehicle articulates (motorcycle, trailer, pick up with trailer)
2. Yaw mark was caused by impact (pit maneuver)
3. If it violates any of the 3 characteristics of a Yaw.