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