Transportation Flashcards

1
Q

Signs that inform road users of traffic laws
and regulations which, if disregarded, will constitute an offense.

A

Regulatory Signs

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2
Q

device mounted on a fixed support (permanent signs) or portable support (temporary signs) whereby a specific
message is conveyed by means of words or symbols placed or erected for the purpose
of regulating, warning or guiding traffic.

A

Traffic Signs

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3
Q

Signs that instruct road users to meet
certain traffic rule requirements or road condition

A

Special Instruction Signs

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4
Q

Warn road users of condition on or adjacent to the road that may be unexpected or hazardous

A

Warning Signs

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5
Q

Inform and advice road users
of directions, distance, routes, the location of services, and points of interests

A

Guide Signs (Informative Signs)

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6
Q

Warn or advise of temporary hazardous
conditions that could endanger road users or the men and equipment engaged on roadwork

A

Roadwork Signs

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7
Q

Signs which provide means of displaying
essential traffic information on wide multi-lane roads, where some degree of lane use control is required, or where side-of-road clearance is insufficient to accommodate a road side sign

A

Overhead Signs

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8
Q

Highway appurtenances designed to prevent vehicular penetration from the travel way to areas behind the barrier such as to minimize damage to impacting vehicles and their occupants, and to reduce the risk of injuries to pedestrians and workers

A

Barriers

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9
Q

Warning devices used to supplement other
controls and devices necessary to alert motorists of construction and maintenance activities or obstructions in the roadway.

A

Flashing Lamps

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10
Q

Light retro-reflecting devices mounted at the side of the roadway, in series, to indicate the roadway alignment.

A

Delineators

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11
Q

Devices which may be conical in shape or tubular shaped capable of performing channelization of traffic which may
be set on the surface of the roadway or rigidly attached for continued use.

A

Traffic Cones

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12
Q

Roadwork devices consisting of pre-cast
concrete sections, sandbag, and others which, may be used to guide traffic at the construction site.

A

Temporary Curbing

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13
Q

Device used in place of rigid barrier
posts or traffic cones with a minimum of 450 mm by 50 mm wide with alternate bands of contrasting color as seen by approaching
traffic for delineation of traffic.

A

Flexible Post or Bollard

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14
Q

Used as a background for STOP signs, as border color on GIVE WAY signs, warning signs and prohibitive signs in the regulatory type.

A

Red

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15
Q

Used as legend color for signs having white, yellow, orange, fluorescent orange, fluorescent yellow green background and as chevron for hazard makers.

A

Black

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16
Q

Used as background color for road signs.

A

Yellow

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17
Q

Background color for most signs and legends for some colored background

A

White

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18
Q

Background color for signs
related to pedestrian movement, school zones, and road work hazard markers to give additional emphasis and guidance to vehicle operators

A

Flourescent Yellow Green

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19
Q

Used as background color for roadwork
signs whose legends relate to personal working

A

Fluorescent Orange

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20
Q

Background color for direction signs.

A

Green

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21
Q

Background color for service signs.

A

Blue

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22
Q

Reserved as background color for all tourist facility directional and information signs.

A

Brown

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23
Q

OSH Standard color for “Fire Protection”. To call attention to fire protection equipment apparatus and
facilities

A

Red

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24
Q

OSH Standard color for designating “safety”.

A

Green

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25
Q

OSH Standard color for the designation of “traffic” and housekeeping marking.

A

White

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26
Q

OSH Standard color to designate “caution” and for marking physical hazards such as striking against, stumbling, falling. tripping, and “caught in between”.

A

Yellow

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27
Q

OSH standard color for “Alert”. To designate dangerous parts of machines or energized equipment.

A

Orange

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28
Q

OSH standard color for Precaution. To designate caution, limited to warning against
starting, use of, or the movement of equipment which is under repair or
being worked upon.

A

Blue

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29
Q

OSH standard color for “Radiation”. To designate hazards. Yellow is used in combination with purple for markers, such as tags, labels, signs and floor markers.

A

Purple

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30
Q

Among the four Sizes for Regulatory Signs dedicated for urban low speed roads.

A

Size A

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31
Q

Among the Four Sizes for Regulatory Signs dedicated for rural roads with speed limits between 60 and 70 kph.

A

Size B

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32
Q

Among the Four Sizes for Regulatory Signs dedicated for high speed rural highways’ multi-lane urban roads.

A

Size C

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33
Q

Among the Four Sizes for Regulatory Signs dedicated for Expressways.

A

Size D

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34
Q

Types of Pavement Lines and Markings

A

Longitudinal lines, Transverse lines, Other lines, Other markings

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35
Q

Shape reserved exclusively for STOP signs.

A

Octagon

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36
Q

Shape reserved for Give Way Sign

A

Inverted Equilateral Triangle

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37
Q

Shape for Railroad crossing Advance warning signs and for Civil Defense Evacuation Route Marker

A

Circle

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38
Q

Shape used for Warning Signs

A

Equilateral triangle

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39
Q

Shape used for directional signs, service signs, roadwork signs, signs for special purposes, and supplementary plates for warning signs.

A

Rectangle with horizontal long axis

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40
Q

Shape used for facility information signs, instruction signs, guide signs, and destinations of point of interest.

A

Rectangle with vertical long axis

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41
Q

Shape used for pedestrian and school crossing sign.

A

Pentagon with point up.

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42
Q

The three elements of sight distance:

A
  • Driver Eye Height
  • Object Height
  • Sight Distance
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43
Q

What are the two components of stopping sight distance?

A

Reaction distance and Braking Distance

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44
Q

The distance traveled while the driver
perceives a hazard, decides to take action, then acts by starting to apply the
brakes to start slowing down

A

Reaction distance

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45
Q

The distance required for the vehicle to slow down and stop.

A

Braking Distance

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46
Q

A protected water area to provide safe and
suitable accommodation for ships for the transfer of cargo, refueling, repairs, etc.

A

Harbor

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47
Q

A sheltered place where the ship may receive or discharge cargo.

A

Port

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48
Q

A navigable channel in a harbor, offshore etc; the usual course taken by vessels in such places.

A

Fairway

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49
Q

A place where the ship can moor.

A

Berth

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50
Q

A continuous structure built parallel to
along the margin of the sea or alongside
riverbanks, canals, or waterways where vessels may lie alongside to receive or discharge cargo, embark or disembark passengers or lie at rest.

A

Wharf

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51
Q

Can be substituted to wharf
when applied to great solid structures in large ports.

A

Quay

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52
Q

Any structure built into the sea but not
parallel to the coastline and includes any stage, stair landing place, landing stage jetty, floating barge, and pontoon, any bridge or other works connected there with.

A

Pier

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53
Q

A landing stage or small pier at which
boats can dock or be moored.

A

Jetty

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54
Q

A berth structure for mooring the ship
on the open sea.

A

Dolphin

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55
Q

An isolated piled or gravity structure used either to maneuver a ship or to facilitate holding it in position at its berth.

A

Dolphin

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56
Q

A type of dock consisting of a rectangular
basin dug into the shore of a body of water and provided with a removable enclosure wall or gate on the side toward the water, used for major repairs and overhaul of
vessels.

A

Dry Dock

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57
Q

A phenomenon involving abnormal oscillations of the water level with a period of approximately a few minutes to a few
tens of minutes.

A

Seiche

58
Q

It occurs when small fluctuations of the water level are generated by micro-scale variations of the atmospheric pressure.

A

Seiche

59
Q

Wave with an extremely long period that
mainly occur when there is a sudden large
scale sea floor movement usually associated
severe, shallow focus earthquake.

A

Tsunami

60
Q

Abnormal rise of the sea level that occurs
when a typhoon passes by

A

Storm Surge

61
Q

What causes storm surge?

A

Atmosphere pressure reduction and Wind Stress

62
Q

The average of the sea water surface for all stages of the tide over a 19 year period.

A

Mean Sea Level (MSL)

63
Q

The height of the low-water over a 19-year period.

A

Mean Low Water (MWL)

64
Q

Average height of the lower low waters over a 19-year period.

A

Mean Lower Low Water (MLLW)

65
Q

Average height of the high water over a 19-year period.

A

Mean High Water (MHW)

66
Q

Average height of the higher high water over a 19-year period.

A

Mean Higher High Water (MHHW)

67
Q

One of the important factors that lead to changing of the wave height in coastal waters.

A

Wave Shoaling

68
Q

Phenomenon whereby waves wheel
into region that is screened by something
like a breakwater.

A

Wave Diffraction

69
Q

Change in wave height and wave direction due to the change in local wave velocity caused in water depth.

A

Wave Refraction

70
Q

The wave at a place where the water depth is at least one half of the wavelength.

A

Deepwater Waves

71
Q

The wave whose height and period are equal
to the mean height and period of all of the
waves in a wave group.

A

Mean Wave

72
Q

To level a floor or layer of concrete with a straight edge using a back and forth motion while moving across the surface.

A

Screeding

73
Q

Difference between actual travel time and a given segment of a transportation system and some ideal travel time for that segment.

A

Delay

74
Q

Series of Interconnected or interlaced cracks caused by fatigue of the asphalt concrete surface under repeated traffic loading.

A

Alligator cracking

75
Q

A column driven into the soil to support structure by tranferring building loads to a deeper and stronger layer of soil or rock.

A

Piles

76
Q

Cracks forming large interconnected polygons caused by hardening and shrinkage of the asphalt.

A

Block cracking

77
Q

Progressing disintegration of the surface caused by dripping of gasoline or oil from vehicles.

A

Drip track ravelling

78
Q

Exuding of bitumen onto the pavement surface, causing reduction in skid resistance.

A

Bleeding or flushing

79
Q

Written instructions detailing how the facility is to be constructed.

A

Specifications

80
Q

Bulk composition of concrete.

A

Portland cement, aggragates, water

81
Q

Used for testing the relative consistency of concrete.

A

Slump test

82
Q

Most important process to prepare concrete:

A

Batching

83
Q

When a vehicle moves obliquely across the path of another vehicle moving in the same direction.

A

Weaving

84
Q

Maximum sustained 15 min. rate of flow expressed in passenger cars per hour per lane.

A

Capacity

85
Q

Maximum number of vehicles in a roadway

A

Road capacity

86
Q

Process of proportioning cement, water aggregates, and additives prior to mixing concrete.

A

Batching

87
Q

When density increases, what happend to speed.

A

Decreases/declines

88
Q

Type of thermoplastic lane marking designed to aid and provide motorists with visual, audio, and motion warning on the road.

A

Rumble strips

89
Q

How many words is allowed when painting messages on pavements?

A

less than 3

90
Q

Standard sign shape for regulatory signs.

A

Circle

91
Q

Standard shape for additional information

A

Circle

92
Q

How many letters and numerals being used for signs?

A

6

93
Q

Types of Reflectorized Markings:

A

Retro Reflector….
Hazard markers
Delineators

94
Q

Purpose of edge lines

A
  • Discourage travel on road shoulders.
  • Make driving safer as it provides continuous guide for driver.
  • Act as a guide past objects close the edge of the pavement.
  • Prevent Parking
95
Q

Barrier lines may consist:

A
  • Two unbroken yellow lines
  • Single unbroken yellow line
  • Single yellow line with a broken white line
96
Q

Lines to guide vehicle through a turning movement at intersections.

A

Turn Lines

97
Q

Types of pedestrian crossing:

A

Zebra and Crosswalk

98
Q

Lines used to guide traffic safely past obstructions on roadways such as islands, median strips, etc.

A

Transition lines

99
Q

Types of Transverse Lines

A
  • Stop Lines
  • Give Way Lines
  • Pedestrian Crossing Markings
  • Roundabout Holding Lines
100
Q

Color of Messages when painted on pavements.

A

White

101
Q

Mark obstructions other than islands with reflectorized white paint with no less than ____ alternating reflectorized black and white stripes.

A

5m

102
Q

Markings that are often used to guide traffic into the right turning lanes separated by an island, suchs as a corner island at a signalized intersection.

A

Chevron markings

103
Q

A very short section of fully constructed shoulder or added lane that’s provided to allow slow vehicles to pull aside and be overtaken.

A

Turnout

104
Q

Length of letters or numerals used on pavement messages of high-speed highways.

A

5m

105
Q

Process of moving soil or rock from one location to another and processing it so that it meets construction requirements of location, elevation, density, moisture content, and so on.

A

Earthmoving

106
Q

Average volume of materials moved per equipment cycle is called:

A

Volume per cycle

107
Q

Rock Particles larger than 76mm diameter

A

Cobbles

108
Q

A construction material which is composed of individual particles larger than about 6mm in diameter but smaller than 76 mm

A

Gravel

109
Q

A measure of the difficulty of excavating and loading a soil.

A

Loadability

110
Q

Ability of a soil to support the weight of vehicles under repeated traffic.

A

Trafficability

111
Q

Smaller than gravel but larger than the No. 200 Sieve opeing (0.7mm).

A

Sand

112
Q

Particles can pass the No. 200 Sieve but are larger than .002 mm

A

Silt

113
Q

Particles less than .002mm

A

Clay

114
Q

A highly organic soil having fibrous texture, with dark color, odor, and spongy feel. Considered unsuitable for construction use.

A

Peat

115
Q

Soils having less than 50% passing on No. 200 sieve

A

Coarse-grained soil

116
Q

Soils having more than 50% passing on No. 200 sieve

A

Fine-grained soil

117
Q

Expulsion of water in soil

A

Consolidation

118
Q

Expelling air in soil

A

Compaction

119
Q

Evaluates soil’s moisture density relationship

A

Proctor test

120
Q

Moisture content when max. density is achieved.

A

Optimum moisture content of soil.

121
Q

A tractor equipped with front-mounted earthmoving blade

A

Dozer or bulldozer

122
Q

Process of densifying cohesionless soils by inserting vibratory probe into the soil

A

Vibroflotation, vibrocompaction, vibratory compaction

123
Q

Chemical reaction between cement and water which produces hardened cement

A

Hydration

124
Q

Determines the strength, water tightness, durability, and wear resistance of concrete mix.

A

Water/cement ratio

125
Q

Water/cement ratios ranges from:

A

0.4 to 0.7

126
Q

Selected speed used to determine the various geometric design features of a roadway.

A

Design Speed

127
Q

Speed at which individual vehicles travel over a highway section

A

Running Speed

128
Q

When traffic on a highway limits or reduces the road way capacity in a single area.

A

Bottleneck

129
Q

Uninterrupted traffic flow are defined by three primary measures

A

Speed, volume and density

130
Q

Restriction of interference to normal free flow

A

Congestion

131
Q

Factor used to convert the rate of flow during the highest 15-min period to the total hourly volume

A

Peak hour factor

132
Q

Ratio of total hourly volume to the number of vehicles during the highest 15-min period multiplied by 4.

A

Peak hour factor

133
Q

Length of roadway ahead that is visible to the driver.

A

Sight distance

134
Q

Portion of the roadway that accommodates stopped vehicles, emergency used, and lateral support of subbase, base, and suface course.

A

Shoulders.

135
Q

For the recovery of errant vehicles.

A

Clear zone

136
Q

What is the depth of shallow water waves in relation to its length?

A

depth is less than 1/20 of length (d<L/20)

137
Q

What is the depth of deep water waves in relation to its length?

A

depth is greater than half its length
(d>L/2)

138
Q

When does wave break occur on deep water waves?

A

When wave height exceeds 1/7 of wavelength. (H>L/7)

139
Q

When does wave break occur on shallow water waves?

A

When depth is equal to 1.25 of wave height. (d = 1.25H)

140
Q

What is the ratio between wave height and wave length?

A

Steepness

141
Q

How to know a transitional wave?

A

L/20 < d < L/2