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