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