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Transportation CE 150 > Safety > Flashcards

Safety Flashcards

1
Q

How many people killed on world’s roads each year?

A

More than 1 million

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2
Q

4 E’s of transportation safety

A

Engineering
Education
Enforcement
Emergency

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3
Q

Engineering

A

Make system safe and fast: separate lanes, signs, markings.

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4
Q

Education

A

Inform users of rules and rights and limitations. Prevention

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5
Q

Enforcement

A

Law enforcement prevents violations

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6
Q

Emergency

A

Minimize damages/outcome of event

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7
Q

6 steps of engineering portion of safety

A 
Planning
Design
Construction
Operations
Maintenance
Decomission
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8
Q

Half of all fatalities

A

Pedestrian, cyclists, motorcycles

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9
Q

2004

A

Traffic accidents # 8 cause of death

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10
Q

Main causes of road accidents (driver related)

A

Distracted driving!

Recognition error/decision error

Performance error

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11
Q

Vehicle related causes

A

Tires, wheels/breaks, steering suspension, transmission, engine

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12
Q

Environment related causes

A 
Slick roads (ice)
View obstructions
Other
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13
Q

Type of vehicle with largest # of crashes

A

Passenger vehicle

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14
Q

Design considerations for safety

A 
Lane width
Grade
Horiz curve
Shoulder
Median
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15
Q

Predictiability

A

Good to be consistent and logical

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16
Q

As lane width increases…

A

traffic accidents decrease

17
Q

As vertical grade increases…

A

accident rates increase

18
Q

***As horizontal radius decreases…

A

accidents inside curve increase

19
Q

As shoulder width increases…

A

of accidents decrease

20
Q

What type of medians are better for safety?

A

Those designed at a lower altitude than the pavement

21
Q

What percentage of accidents involve human factors?

A

93%

22
Q

Where are road most unsafe?

A

Where the road design prevents drivers from predicting situations ahead

23
Q

Types of traffic signs

A

Regulatory
Warning
Guide

Transportation CE 150 (6 decks)

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