Review Flashcards

Flashcards for vocabulary related to vertical curves, sag curves, sight distance, horizontal curves, earthworks, and ports and harbors.

Stopping Sight Distance

The distance required for a driver to stop their vehicle after seeing an obstacle.

Vertical Curve

A curve used to provide a gradual change in grade between two tangent grades.

Sag Vertical Curve

A vertical curve that has a low point.

Crest (Summit) Vertical Curve

A vertical curve that has a high point.

Algebraic Difference in Grades

The difference between two intersecting grades.

Comfort Criterion

Standard related to road user experience.

Sight Distance

The distance along the road within the driver's line of sight.

Horizontal Curve

A curve that changes the direction of a road in the horizontal plane.

Clear Distance

Distance from the center of the roadway to an obstruction.

Earthworks

The process of cutting and filling earth to create a level roadbed.

Side Slope

The inclination of a slope to the horizontal or vertical.

Harbor

A structure providing shelter to vessels and protection from waves.

Artificial Harbor

Harbor built by building breakwaters and seawalls.

Current Velocity

The velocity of water flow through a harbor entrance.

Port

Harbors that incorporates terminal facilities.

Lee Side

Side of the harbor sheltered from the wind.

Clear Water Area

The area required for assisting ships into berth.

Anchorage

Large body of water used to secure vessels using cables and anchors.

Wind

Generated force of wind against a body of water.

Waves

Generated by wind, they transfer from wind to water.

Anemometer

Instrument use to measure intensity of wind.

Swells

Relatively long waves generated by storms outside the area of observation.

Seiching Waves

Waves with long periods found in enclosed basins.

Storm Surge

Unusual high water level.

Wave Steepness

Wave's ratio of wave length to its height

Significant Wave Height

Arithmetical mean value of the one-third of the Waves for a stated period of time

Tsunamis

Waves with an extremely long period caused by sudden movements.

Ebb Tide

Falling water.

Breaking Waves

Wave that fall forward

Fetch

Wind blow across the water in generating waves.

Spring Tides

Tides that reach a maximum height is at or near the new or full moon

Neap Tides

Tides that occur when the lines connecting the earth with the sun and the moon form a right angle

Datum Line

Line that guarantees depth for safety of the berthing ships

Age of the Tide

Retardation of the tidal wave by frictional force.

Finished Grade

The volume of earthworks after compaction.

Diurnal

The average interval between successive high tides.

Profile Area

Area between the ground line and the grade line

Flood Tide

Rising water.

Mass Diagram

Graphical representation

Beauforts Scale

Scale use to measure force of winds

Tidal Wave

Water flow in the direction

Astronomical Tidal Day

The amount of time equal to the time of rotation

Astronomical Tide

Gravitation of the sun and moon as rotated

Astronomical Tide

The periodic rise in response to the gravitation

Seiche

Abnormal oscillations of the water level

Swell

Wind deep ocean

Ebb

Lowest observed water surface

Range

Sea slope level

Shallow

Characteristics of what kind of ocean

Velocity

Ocean velocities is how much in percentage