Transportation Engineering Terms Quiz

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Questions and Answers

What is the cause of alligator cracking in asphalt concrete?

Presence of coarse aggregate in the mix

Excessive application of bituminous binder

Fatigue failure due to repeated traffic loading (correct)

Improper compaction of the asphalt

What does 'amplitude' refer to in the context of transportation engineering?

Distance between two parallel cracks

Width of a lane on the highway

Thickness of the asphalt layer

Height between the trough and the crest of a wave (correct)

What is the term used to describe localized upward buckling and shattering of slabs at traverse joins or cracks?

Blowups (correct)

Breaking waves

Average speed

Breakwater

What is the purpose of barriers in highways?

To minimize damage to impacting vehicles and their occupants Signup and view all the answers

What does 'breaking waves' refer to in transportation engineering?

Waves which fall forward due to particle velocities exceeding wave velocity Signup and view all the answers

What is the structure that protects harbor from stormy waves and permits calm in the harbor?

Breakwater Signup and view all the answers

What is the condition for deep water waves to normally occur?

When wave length L is less than 7 times the wave height H (L < 7H) Signup and view all the answers

What consists of aggregates such as gravel and crushed rock?

Base courses Signup and view all the answers

What does Beaufort's Scale measure the intensity of?

Wind Signup and view all the answers

What is Bitumen carpet?

A 20 mm thick premix bitumen layer over which a seal coat is laid Signup and view all the answers

What does breasting dolphins do for ships when docking?

They absorb the impact of the ship and hold it against a broadside wind Signup and view all the answers

What are chevron markings used for?

To guide traffic into right turning lanes separated by an island Signup and view all the answers

What are bitts used for in relation to mooring ships?

Mooring fitting for mooring ships during a storm installed close to the water line of the berth Signup and view all the answers

What does capacity refer to in transportation systems?

The maximum sustained 15 min rate of flow expressed in passenger cars per hour per lane Signup and view all the answers

What is block cracking in relation to pavements?

Cracks forming large interconnected polygons, usually with sharp corners or angles Signup and view all the answers

What does bathymetry entail?

The physical configuration of the seabed, measurements of depths of water in the ocean, etc. Signup and view all the answers

Study Notes

Alligator Cracking and Pavement Issues

Alligator cracking in asphalt concrete is typically caused by repetitive loading and insufficient support, leading to fatigue failure.
Block cracking refers to cracks that form in a pattern resembling a block or grid, usually resulting from age, desiccation, or poor construction practices.

Wave and Water Terms

Amplitude in transportation engineering refers to the height of a wave measured from the mean water level, impacting wave energy and behavior.
Breaking waves describe the phenomenon when ocean waves collapse onto themselves, often affecting coastal structures and navigation.
Deep water waves normally occur in water depths greater than half the wavelength, where wave motion is not hindered by the ocean floor.

Marine Structures and Harbor Safety

A structure that protects harbors from stormy waves is called a breakwater, ensuring a calm environment for vessels.
Breasting dolphins provide a secure mooring point for ships, facilitating easier and safer docking operations.

Traffic and Marking Significance

Chevron markings are used to indicate directional changes in roadways or to guide vehicles through curves, enhancing safety.
Bitts are sturdy vertical posts on a ship or dock used for securing mooring lines, essential for stable vessel positioning.

Additional Engineering Concepts

Barriers on highways serve the purpose of enhancing safety by preventing vehicles from crossing into oncoming traffic and reducing crash severity.
Capacity in transportation systems refers to the maximum number of vehicles or pedestrians that can successfully navigate a section of roadway or transit system in a given timeframe.
Bathymetry entails the study and mapping of underwater depth contours, crucial for navigation and coastal engineering.

Miscellaneous Terms

Bitumen carpet is a type of surface layer used in road construction consisting of bitumen-infused aggregates, providing durability.
Beaufort's Scale measures wind speed and intensity, ranging from calm conditions to hurricanes, important for maritime navigation and safety chevron markings are used for directing vehicles.

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Description

Test your knowledge of transportation engineering terms such as 'alligator cracking', 'amplitude', and 'blowups'. Learn about the causes and characteristics of these phenomena in pavement and road infrastructure.