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