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