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Test your basic knowledge |
Transportation Engineering
Start Test
Study First
Subject
:
engineering
Instructions:
Answer 34 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Curves - curves with spirals - broken back - compound curves - reverse curves
Types of Horizontal Curves
Geometric Design
Operating Speed
compound curves
2. Uses circular curves for constant radius; curves require superelevation; the length is measured along the curve between its beginning and ending point
Horizontal Curves
Vertical Curves
Standard PRT for SSD
Design Standard References: Roadways & Rail
3. Multiple curves connected directly together go from large radii to smaller radii (similar to spiral curves)
compound curves
Standard PRT for SSD
Rural Functional Classes
Types of Pavement Failures
4. Grades - length
Elements of Design
Types of Horizontal Curves
veritcal alignment
Types of pavement surfaces
5. Average speed of drivers (SMS)
Function of Roads
Operating Speed
RMEV
VPT
6. Interstate - Principal Arterial - Minor Arterial - Major & Minor Collector - Local
Rural Functional Classes
Function of Roads
Standard PRT for SSD
Vertical Curves
7. Vertical point of curvature; PVC = PVI - g1^2(L)/2
Rural Functional Classes
Departure sight triangle
VPC
compound curves
8. Roadways: AASHTO Green Book & TxDOT Roadway Design Manual Rail: American Railway Eng. Ass.
RHMVH
broken back
Design Standard References: Roadways & Rail
VPT
9. Design for function NOT volume; (Ex. Roads designed only on volume: Briarcrest Drive and Rock Prairie Rd)
Basis for Design
veritcal alignment
compound curves
Function of Roads
10. Superelevation - side friction - radius
Elements of Design
horizontal alignment
Operating Speed
RHMVH
11. Principal Arterial (freeway is the highest class) - Minor Arterial - Collector - Local Roads and Streets
When to apply DSD
Superelevation is controlled by 4 factors
Functional Classes
Departure sight triangle
12. Flexible: asphalt concrete; rigid: portland cement concrete
Design Speed
compound curves
Types of pavement surfaces
Elements of Design
13. Must be able to see far enough to be able to cross the road from a stop
Operating Speed
Departure sight triangle
VPC
Running Speed
14. Term used to describe the way in which highway designers try to fit the highway to the terrain while maintaining design standards fro safety and performance
Elements of Design
Geometric Design
Horizontal Curves
Standard PRT for SSD
15. 11.2 fps^2
Basis for Design
Standard deceleration rate for SSD braking
Design Standard References: Roadways & Rail
Vertical Curves
16. Climate conditions - terrain - type of area (rural or urban); and frequency of slow moving vehicles
Running Speed
Factors that affect design
Superelevation is controlled by 4 factors
veritcal alignment
17. Vertical point of tangency; PVT = PVI + g2^2(L)/2
VPT
When to apply DSD
Rural Functional Classes
Vertical Curves
18. Uses parabolic curve for variable radius; length is determined by the rate of change; length along the curve is the projected horizontal distance
VPT
Rural Functional Classes
Factors that affect design
Vertical Curves
19. Must be able to see far enough to stop before the intersection
RMEV
Design Standard References: Roadways & Rail
Approach sight triangle
Standard PRT for SSD
20. Speed without any impacts of delay (TMS)
Function of Roads
Running Speed
broken back
Basis for Design
21. Interchanges or intersections with unexpected or unusal maneuvers; changes in cross sectionl areas of concentrated demand
Approach sight triangle
Geometric Design
Horizontal Curves
When to apply DSD
22. Rate per million entering vehicles
Approach sight triangle
Horizontal Curves
RMEV
Types of Pavement Failures
23. The distance required to react and brake -- does not impact geometric design until it is applied to the characteristics of design such as vertical curve length
VPC
Stopping Sight Distance
VPT
Function of Roads
24. Distance required to permit control of the vehicle to avoid collisions
compound curves
Basis for Design
Intersection Sight Distance
Stopping Sight Distance
25. Rate per hundred million vehicle miles of travel
RHMVH
horizontal alignment
VPC
Types of Horizontal Curves
26. 2.5
Basis for Design
RMEV
Standard PRT for SSD
Functional Classes
27. Sight distance - horizontal alignment - vertical alignment - combo of vert. and horiz. alignment - minimum cross slope - edge radii - ISD - freeway ramp junctions - horiz. and vert. clearances
Elements of Design
Approach sight triangle
When to apply DSD
Departure sight triangle
28. Two curves with different radii connected back to back in the same direction
Superelevation is controlled by 4 factors
VPC
Factors that affect design
broken back
29. Selected speed used to determine the various geometric design features of the roadway (controls your horizontal adn vertical curves)
Design Speed
Horizontal Curves
Geometric Design
compound curves
30. Interstate + Freeway/Expressway - Principal Arterial - Minor Arterial - Collector - Local
Urban Functional Classes
Superelevation is controlled by 4 factors
Function of Roads
Basis for Design
31. Provide lateral guidance and support vehicles
Types of Pavement Failures
Basis for Design
function of pavements
broken back
32. Infrastructure - vehicles - operators
Basis for Design
Factors that affect design
Standard deceleration rate for SSD braking
Operating Speed
33. Asphalt: alligator - longitudinal - reflection - pothole - rutting - pumping --- Concrete: corner breaks - durability cracks - longitudinal crack - joint seal failure - scaling/spalling - blowup
Functional Classes
Types of Pavement Failures
Urban Functional Classes
compound curves
34. Mobility & Access
broken back
RHMVH
Urban Functional Classes
Function of Roads