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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. 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
Types of Pavement Failures
Approach sight triangle
RHMVH
2. Interchanges or intersections with unexpected or unusal maneuvers; changes in cross sectionl areas of concentrated demand
VPT
broken back
Approach sight triangle
When to apply DSD
3. Selected speed used to determine the various geometric design features of the roadway (controls your horizontal adn vertical curves)
Intersection Sight Distance
Approach sight triangle
Design Speed
Running Speed
4. 11.2 fps^2
Functional Classes
Standard deceleration rate for SSD braking
VPC
RMEV
5. Climate conditions - terrain - type of area (rural or urban); and frequency of slow moving vehicles
Urban Functional Classes
Superelevation is controlled by 4 factors
When to apply DSD
Functional Classes
6. Principal Arterial (freeway is the highest class) - Minor Arterial - Collector - Local Roads and Streets
broken back
Factors that affect design
Standard deceleration rate for SSD braking
Functional Classes
7. Two curves with different radii connected back to back in the same direction
Superelevation is controlled by 4 factors
VPT
broken back
Intersection Sight Distance
8. Vertical point of curvature; PVC = PVI - g1^2(L)/2
VPC
Operating Speed
Functional Classes
Superelevation is controlled by 4 factors
9. Interstate - Principal Arterial - Minor Arterial - Major & Minor Collector - Local
compound curves
Geometric Design
Rural Functional Classes
Stopping Sight Distance
10. Design for function NOT volume; (Ex. Roads designed only on volume: Briarcrest Drive and Rock Prairie Rd)
Basis for Design
Design Speed
Urban Functional Classes
function of pavements
11. Vertical point of tangency; PVT = PVI + g2^2(L)/2
VPT
Intersection Sight Distance
Design Standard References: Roadways & Rail
VPC
12. Distance required to permit control of the vehicle to avoid collisions
Intersection Sight Distance
VPC
Stopping Sight Distance
broken back
13. Uses parabolic curve for variable radius; length is determined by the rate of change; length along the curve is the projected horizontal distance
horizontal alignment
Horizontal Curves
Function of Roads
Vertical Curves
14. Rate per million entering vehicles
VPC
RMEV
Standard deceleration rate for SSD braking
Types of Pavement Failures
15. Mobility & Access
Superelevation is controlled by 4 factors
VPC
Function of Roads
Types of pavement surfaces
16. Must be able to see far enough to be able to cross the road from a stop
Departure sight triangle
RMEV
RHMVH
Approach sight triangle
17. Infrastructure - vehicles - operators
Factors that affect design
Running Speed
Design Standard References: Roadways & Rail
function of pavements
18. Provide lateral guidance and support vehicles
function of pavements
horizontal alignment
Basis for Design
Types of pavement surfaces
19. Uses circular curves for constant radius; curves require superelevation; the length is measured along the curve between its beginning and ending point
Factors that affect design
RMEV
Horizontal Curves
Running Speed
20. Multiple curves connected directly together go from large radii to smaller radii (similar to spiral curves)
Functional Classes
Basis for Design
compound curves
horizontal alignment
21. Curves - curves with spirals - broken back - compound curves - reverse curves
VPC
Operating Speed
Types of Horizontal Curves
Rural Functional Classes
22. 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
Stopping Sight Distance
When to apply DSD
Rural Functional Classes
Intersection Sight Distance
23. 2.5
Departure sight triangle
Function of Roads
broken back
Standard PRT for SSD
24. Roadways: AASHTO Green Book & TxDOT Roadway Design Manual Rail: American Railway Eng. Ass.
Design Standard References: Roadways & Rail
Urban Functional Classes
VPT
Intersection Sight Distance
25. Interstate + Freeway/Expressway - Principal Arterial - Minor Arterial - Collector - Local
Elements of Design
Urban Functional Classes
Rural Functional Classes
horizontal alignment
26. Grades - length
Design Standard References: Roadways & Rail
Superelevation is controlled by 4 factors
Types of Horizontal Curves
veritcal alignment
27. Superelevation - side friction - radius
Superelevation is controlled by 4 factors
RHMVH
horizontal alignment
Stopping Sight Distance
28. Speed without any impacts of delay (TMS)
Running Speed
When to apply DSD
Horizontal Curves
Vertical Curves
29. Rate per hundred million vehicle miles of travel
Types of Pavement Failures
Types of Horizontal Curves
RHMVH
Design Standard References: Roadways & Rail
30. Flexible: asphalt concrete; rigid: portland cement concrete
Types of Pavement Failures
Horizontal Curves
Superelevation is controlled by 4 factors
Types of pavement surfaces
31. 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
Approach sight triangle
Superelevation is controlled by 4 factors
Departure sight triangle
Geometric Design
32. Must be able to see far enough to stop before the intersection
VPT
Approach sight triangle
horizontal alignment
RMEV
33. Average speed of drivers (SMS)
Operating Speed
Superelevation is controlled by 4 factors
veritcal alignment
Function of Roads
34. Asphalt: alligator - longitudinal - reflection - pothole - rutting - pumping --- Concrete: corner breaks - durability cracks - longitudinal crack - joint seal failure - scaling/spalling - blowup
Design Standard References: Roadways & Rail
Geometric Design
Standard PRT for SSD
Types of Pavement Failures