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