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A- General Engineering License > Traffic Control > Flashcards

Traffic Control Flashcards

1
Q

When less than five parking spaces are provided, one shall be how many feet wide?

A

14 feet

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2
Q

When the sign is in path of travel it should be posted at a height of ___ inches minimum.

A

80 inches or 6’-8”

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3
Q

Beveled lip, the lower end of each curb ramp shall have a ___inch lip beveled at 45 degrees for visual impairments.

A

1/2 inch

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4
Q

In accordnace with ADA guide lines of a parking lot designed to park 26 to 50 vehicles the required number of accessible ADA spaces would be?

A

2

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5
Q

The slope of a curb ramp should not exceed?

A

1 -12 units

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6
Q

Length of a paking space shall be at least how many feet long?

A

18 feet

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7
Q

The international accessibility symbol shall be ___ sq. inches minimum.

A

70 square inches

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8
Q

Parking spaces and access aisles shall not exceed a slope of?

A

2%

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9
Q

Signs displaying “unauthorized parking” shall be 17 inches by 22 inches minimum with letter___ inches minimum in height.

A

1 inch

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10
Q

A TTC plan should be designed so that vehicles can travel through the zone with a speed limit reduction of no more than…

A

10 mph

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11
Q

Four areas of a TCC zone?

A
  1. The advance warning area
  2. The transition area
  3. The activity area
  4. Termination area
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12
Q

Typical distances for placement of warning signs in advance warning area?

A

Freeways - 1/2 mile

Urban streets - 4 to 8 Times the speed limit in mph

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13
Q

Temporary Sign Placement - location and height?

A

Located on the right-hand side of the roadway.

  • Minimum height from bottom of the sign to the elevation of pavement/sidewalk
    - 5 feet rural areas
    - 7 feet everywhere else
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14
Q

Recommended advance warning sign minimum spacing for:

  1. Urban low speed
  2. Urban high speed
  3. Rural
  4. Freeway
A
  1. 100 feet
  2. 350 feet
  3. 500 feet
  4. 1,000 feet
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15
Q

Buffer space

A

Is an area that separates road user flow from the work space and might provide some recovery space for an errant vehicle.

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16
Q

Stopping sight distance as a function of speed?

20 mph =
35 mph =
55 mph=
75 mph =

A

20mph = 115 feet
35mph = 155 feet
55 mph = 495 feet
75 mph = 820 feet

17
Q

Formula for determining taper length?

  • 40 mph or less
  • 45 mph or more
A

40 mph or less:
L = WS^2/ 60

45 mph or more:
L=WS

Where,
W = width of offset in feet
S = posted speed limit

18
Q

The maximum distance in feet between devices in a taper should not exceed _______ the speed limit in mph

A

1 times

19
Q

One-lane, two-way traffic taper and a down stream taper should have a taper length range of what in feet?

A

50 feet minimum, 100 feet maximum

20
Q

When it is not possible to maintain a 60” width for a pedestrian pathway, a ___” x ____” passing space should be provided every _____ feet

A

60” x 60”, 200 feet

21
Q

Signs and other devices mounted lower than 7 feet above the temporary pedestrian pathway should not project more than ____” into accessible pedestrian facilities

A

4”

22
Q

Lateral locations of signs from shoulder/road/sidewalk?

  1. Rural
  2. Rural with advisory speed plaque
  3. Business commercial or residential
  4. Business commercial/residential - no curb
A
  1. 6 to 12 feet
  2. 6 ft min. From shoulder
  3. 2 feet
  4. 6 to 12 feet
23
Q

If portable mounting signs do not meet minimum height requirements, they cannot be used longer than?

A

3 days

24
Q

The bottoms of a sign mounted on a barricade or other portable support shall be at least _____ above traveled way.

A

1 foot

25
Q

Channelizing devices for pedestrian shall be continuous and have the following dimensions above the ground.

A

Bottom of the bottom surface - no higher than 2” above ground

Top of the top surface - no lower than 32” - 36” above ground

26
Q

Barricades used on high speed roadways shall have a minimum square inches of retroreflective area facing road users.

A

270 square inches

27
Q

Overhead sign placement in feet?

A

17 feet from bottom of sign to top of ground.

Post shall be 6’ minimum away from shoulder edge

A- General Engineering License (13 decks)

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