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