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