Transportation Engineering Flashcards

1
Q

A

A

Number of crashes

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2
Q

Ai

A

Area of cross section (average end area method)

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3
Q

Am

A

Area at midpoint of two cross sections

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4
Q

ai

A

Layer (course) strength coefficient

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5
Q

AADT

A

Average annual daily traffic

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6
Q

AASHTO

A

American Association of State Highway and Transportation Officials

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7
Q

ADT

A

Average daily traffic

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8
Q

C

A

Length of Chord

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9
Q

c

A

Length of subchord

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10
Q

CF

A

Cubic feet

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11
Q

CRF

A

Overall crash reduction factor

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12
Q

CRi

A

Crash reduction factor for a specific countermeasure i

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