HSC4663 Exam 3 (Module 8) Latest
Update 2025/2026
What does NHTSA stand for? - ANSWER National Highway Traffic Safety Administration
What is the NHTSA's definition of a fatal car crash? - ANSWER Counts only traffic
fatalities that occur within 30 days of the crash
What does NSC stand for? - ANSWER National Safety Council
What is the NSC's definition of a fatal car crash - ANSWER Counts total traffic fatalities
that occur within one year of the crash
What is the difference between NHTSA and NSC? - ANSWER Data differs from about
800-1,000 deaths per year
Which one do we go with? - ANSWER NHTSA
What are the three types of motor vehicle crashes? - ANSWER vehicle
human
internal movement within the body
Vehicle crash - ANSWER car hits car
Bc of the force of impact, where ever they are hit, will collapse
Engineering comes in here to try and make cars more safe (ex: making the front bumper
more resistant, installing guards to when cars hit them, they don't flip)
Most common types of crashes
What are the three elements of a vehicle crash? - ANSWER perception time
reaction time
braking distance
Perception time - ANSWER perceive you are about to hit something
Reaction time - ANSWER in b/w perception and breaking; how quickly you react/hit the
brakes/turn your wheel
Braking Distance - ANSWER associated with the car; distance b/w when you hit the
brakes and when the car stops; lock brakes --> comes to a stop; if not you may slide
, Human vehicle crash - ANSWER Human impacts with car
Body is going same rate as car
Come to stop --> not wearing a seatbelt --> body comes in contact with the car
Internal movement within the body crash - ANSWER Internal organs strike against the
solid structures of the body
Internal organs are also going the same rate as the car
Come to a stop --> organs slush around until they impact with something in your body
cavity
Can have damage, bruising, even death
Ex: brain moves forward and hits skull causing a concussion
What is child crusher syndrome? - ANSWER Adults move forward with several thousand
pounds of forward moving force.
Crushes child
Motor vehicle crashes are a major public health concern and is the leading cause of
unintentional death for all age groups in U.S T/F - ANSWER True
____ million people are killed on roadways yearly - ANSWER 1.35
________ motor vehicle fatalities in the US and it is a ____ percent decrease from 2018 -
ANSWER 36,120
1.2%
What percentage of all crashes result in disabling injuries? - ANSWER 10%
$______ per motor vehicle death - ANSWER 1,420,000
If a child was being held by an adult and a crash occurred:
The forward force would be ____ times the child's weight - ANSWER 30
A pet that weighs 50 pounds in a 35 mph collision is projected forward like a cannonball
with 1,500 pounds of force T/F - ANSWER True
Update 2025/2026
What does NHTSA stand for? - ANSWER National Highway Traffic Safety Administration
What is the NHTSA's definition of a fatal car crash? - ANSWER Counts only traffic
fatalities that occur within 30 days of the crash
What does NSC stand for? - ANSWER National Safety Council
What is the NSC's definition of a fatal car crash - ANSWER Counts total traffic fatalities
that occur within one year of the crash
What is the difference between NHTSA and NSC? - ANSWER Data differs from about
800-1,000 deaths per year
Which one do we go with? - ANSWER NHTSA
What are the three types of motor vehicle crashes? - ANSWER vehicle
human
internal movement within the body
Vehicle crash - ANSWER car hits car
Bc of the force of impact, where ever they are hit, will collapse
Engineering comes in here to try and make cars more safe (ex: making the front bumper
more resistant, installing guards to when cars hit them, they don't flip)
Most common types of crashes
What are the three elements of a vehicle crash? - ANSWER perception time
reaction time
braking distance
Perception time - ANSWER perceive you are about to hit something
Reaction time - ANSWER in b/w perception and breaking; how quickly you react/hit the
brakes/turn your wheel
Braking Distance - ANSWER associated with the car; distance b/w when you hit the
brakes and when the car stops; lock brakes --> comes to a stop; if not you may slide
, Human vehicle crash - ANSWER Human impacts with car
Body is going same rate as car
Come to stop --> not wearing a seatbelt --> body comes in contact with the car
Internal movement within the body crash - ANSWER Internal organs strike against the
solid structures of the body
Internal organs are also going the same rate as the car
Come to a stop --> organs slush around until they impact with something in your body
cavity
Can have damage, bruising, even death
Ex: brain moves forward and hits skull causing a concussion
What is child crusher syndrome? - ANSWER Adults move forward with several thousand
pounds of forward moving force.
Crushes child
Motor vehicle crashes are a major public health concern and is the leading cause of
unintentional death for all age groups in U.S T/F - ANSWER True
____ million people are killed on roadways yearly - ANSWER 1.35
________ motor vehicle fatalities in the US and it is a ____ percent decrease from 2018 -
ANSWER 36,120
1.2%
What percentage of all crashes result in disabling injuries? - ANSWER 10%
$______ per motor vehicle death - ANSWER 1,420,000
If a child was being held by an adult and a crash occurred:
The forward force would be ____ times the child's weight - ANSWER 30
A pet that weighs 50 pounds in a 35 mph collision is projected forward like a cannonball
with 1,500 pounds of force T/F - ANSWER True
