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NEW QUESTION # 43
When a lawsuit is filed against a public agency, consultant, or contractor related to a traffic crash, the claim is frequently one of "negligence." The term "negligence" means:
- A. Failure to do what an ordinary, reasonably prudent person would do under similar circumstances
- B. Failure to ensure the safety of the roadway
- C. Failure to correct high-hazard locations
- D. Failure to remove roadside obstacles
Answer: A
NEW QUESTION # 44
When calculating stopping sight distance, what does the AASHTO "Green Book" use as a deceleration rate?
- A. 9.5 feet /sec/sec
- B. 8.7 feet/sec/sec
- C. 15.0 feet/sec/sec
- D. 11.2 feet/sec/sec
Answer: D
NEW QUESTION # 45
When designing a curve on a road with a design speed of 70 mph, a maximum superelevation rate of 6%, and a side friction factor of 0.10, what is the minimum radius that can be used for this design speed?
- A. 1570 feet
- B. 1810 feet
- C. 2040 feet
- D. 1330 feet
Answer: C
NEW QUESTION # 46
A traffic engineer is designing a roundabout with a design speed of 25 mph. Per AASHTO, what is the minimum radius of the central island to ensure safe navigation?
- A. 95 feet
- B. 80 feet
- C. 65 feet
- D. 50 feet
Answer: C
NEW QUESTION # 47
Which of the following is a possible example of a "system interchange"?
- A. Single point urban interchange (SPUI)
- B. Diamond
- C. Cloverleaf
- D. Partial cloverleaf (parclo)
Answer: C
NEW QUESTION # 48
A traffic engineer is designing a signal timing plan for an arterial with a desired progression speed of 30 mph and intersections spaced 1,760 feet apart. What is the travel time between intersections?
- A. 30 seconds
- B. 35 seconds
- C. 40 seconds
- D. 45 seconds
Answer: C
NEW QUESTION # 49
If an incident blocks one of three freeway lanes, the likely capacity reduction due to the incident is:
- A. 51%
- B. 90%
- C. 33%
- D. 75%
Answer: A
NEW QUESTION # 50
You and your design group are competing for a multidisciplinary concept project. Your firm wins the bid, but you know you have to cut a team member. Can your remaining consortium accept the contract?
- A. No, because an engineer may not accept a contract to coordinate a project with other professional firms providing capabilities and services that must be provided by outside consultants
- B. No, not if the owner is left with the impression that consortium is still fully qualified
- C. Yes, if accepting an assignment to coordinate the project, a single person will sign and seal all documents
- D. Yes, if your remaining team members hire new low cost employees
Answer: A
NEW QUESTION # 51
What is the purpose of a clearance interval in traffic signal timing?
- A. To extend the green phase for high-volume traffic
- B. To allow pedestrians to cross the intersection
- C. To provide time for vehicles to clear the intersection before conflicting movements begin
- D. To synchronize signals at adjacent intersections
Answer: C
NEW QUESTION # 52
For a signalized intersection, the ITE procedure recommends a yellow change interval based on a perception- reaction time of 1 second and a deceleration rate of 10 ft/s². For a 45 mph approach with a 60-foot intersection width, what is the minimum yellow change interval?
- A. 4.6 seconds
- B. 5.0 seconds
- C. 4.2 seconds
- D. 3.8 seconds
Answer: A
NEW QUESTION # 53
A signalized intersection has a lost time of 4 seconds per phase and 4 phases. If the desired volume-to- capacity ratio is 0.85, what is the minimum cycle length to handle a critical lane volume of 1,200 vehicles
/hour?
- A. 80 seconds
- B. 100 seconds
- C. 60 seconds
- D. 120 seconds
Answer: B
NEW QUESTION # 54
What does the term "Level of Service" (LOS) describe in traffic engineering?
- A. The number of lanes on a highway
- B. A qualitative measure of traffic flow and congestion
- C. The frequency of traffic signal maintenance
- D. The speed limit of a roadway
Answer: B
NEW QUESTION # 55
A 16-hour traffic counts, usually 6 am-10 pm normally accounts for what percentage of daily traffic on a roadway?
- A. 100%
- B. 50 to 60%
- C. 90 to 95%
- D. 60 to 75 %
Answer: C
NEW QUESTION # 56
According to the Model Rules, Section 240.15, Rules of Professional Conduct, licensed professional engineers are obligated to:
- A. Ensure the design documents and surveys are reviewed by a panel of licensed engineers prior to affixing a seal of approval
- B. Do whatever is necessary to secure work, including offering directly or indirectly, services or other compensation for contracts
- C. Practice by performing services only in the areas of their competence and in accordance with current standards of technical competence
- D. Express public opinions under the direction of an employer or client regardless of the knowledge of subject matter
Answer: C
NEW QUESTION # 57
Five signalized intersections are spaced at 1400 ft intervals along a two-way arterial street. What would be the BEST cycle length for a coordinated signal system if the desired progression speed is 35 mph?
- A. 110 seconds
- B. 100 seconds
- C. 70 seconds
- D. 85 seconds
Answer: A
NEW QUESTION # 58
What is headway in the context of traffic flow?
- A. The time between successive vehicles passing a point
- B. The distance traveled by a vehicle per unit of time
- C. The number of vehicles in a given length of roadway
- D. The total travel time for a segment
Answer: A
NEW QUESTION # 59
A roadside slope is considered "recoverable" if it is equal to or flatter than:
- A. 1V:3H
- B. 1V:4H
- C. 1V:8H
- D. 1V:10H
Answer: B
NEW QUESTION # 60
For a signalized intersection with a pedestrian crossing distance of 80 feet and a pedestrian walking speed of
3.5 ft/s, what is the minimum pedestrian clearance interval, including a 3-second buffer?
- A. 28 seconds
- B. 31 seconds
- C. 25 seconds
- D. 22 seconds
Answer: A
NEW QUESTION # 61
The U.S. Manual on Uniform Traffic Control Devices specifies that the diamond symbol on signs is to be used exclusively for:
- A. High occupancy vehicle lanes
- B. Two way left turn lanes
- C. Electronic toll collection lanes
- D. Reversible lanes
Answer: A
NEW QUESTION # 62
In the case of an ethical conflict, which entity takes precedence?
- A. The employer
- B. The client
- C. Society
- D. Society and the client are equal and take precedence
Answer: C
NEW QUESTION # 63
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