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