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Traffic Control Devices Flashcards

(19 cards)

1
Q

Percentage of driver guidance information may be received visually

A

Up to 90%

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2
Q

Minimum length of the mast arm for high-mast lighting, as used to light large highway areas such as interchanges and rest areas.

A

125 ft

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3
Q

According to MUTCD, no-passing zones shall be established at following locations:

A

At vertical and horizontal curves

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4
Q

Four sections of the PEDSAFE system:

A

Background information
List of countermeasures
Case studies
Selection tool

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5
Q

Message on a changeable message sign should be designed to be legible from a minimum distance for night time condition.

A

600 ft

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6
Q

Temporary pavement markings should not remain in place for more than

A

2 weeks

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7
Q

What is the philosophy of “Get in, Get Out and Stay out”?

A

Minimize disruption of normal traffic conditions

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8
Q

What is the minimum lateral offset from the edge of the traveled way for post-mounted signs?

A

12 ft

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9
Q

How many warrants does the MUTCD specify for the installation of traffic signals?

A

9

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10
Q

Minimum and maximum yellow change intervals

A

3 and 6 seconds

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11
Q

Centerline markings are required at all urban arterials and collectors that

A

Have traveled way of 20 or more in width
ADT of 6,000 vehicles per day or greater

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12
Q

Which traffic control device is typically used to prevent vehicular queueing across tracks at a crossing?

A

Queue cutter signal

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13
Q

What type of material provides retro reflectivity to pavement markings?

A

Glass beads

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14
Q

How many speed limits should be displayed on any one speed limit sign or assembly?

A

No more than 3 speed limits

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15
Q

How many destination names or street names should be displayed on any advance guide sign or exit direction sign?

A

No more than two

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16
Q

Minimum distance between an advance route turn assembly and either a destination sign or junction assembly in rural areas?

17
Q

What does the term “legend” include on traffic signs?

A

All word messages, symbols and arrow designs

18
Q

In what situation may a hairpin curve sign be used instead of a curve or turn sign?

A

If curve has a change in horizontal alignment of 135 degrees or more

19
Q

Which of the following meets the vertical clearance criterion for a warning beacon suspended over the roadway?