NCEES PE Civil: Transportation MCQs NCEES PE Civil: Transportation TestPrep NCEES PE Civil: Transportation Study Guide NCEES PE Civil: Transportation Practice Test
NCEES PE Civil: Transportation Exam Questions
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NCEES - PE Civil Engineering - Transportation
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A traffic engineer is tasked with developing a signal phasing plan for a complex intersection. If the left-turn phase is protected and is followed by an all-red phase, what is the purpose of the all-red phase in this context?
To allow vehicles to clear the intersection
To optimize signal timing
To minimize vehicle delays
To provide a buffer for pedestrian crossings
At a roundabout, an engineer notes that the entry width is designed to be 10 feet, while the circulating roadway width is 15 feet. If the design vehicle is a large truck, what should be the minimum central island radius to ensure safe navigation?
50 feet
40 feet
30 feet
60 feet
A pedestrian crossing at a signalized intersection has a crosswalk length of 70 feet. If the average walking speed is 4 feet per second, what is the minimum pedestrian crossing time that should be allocated during the signal phase?
15 seconds
17 seconds
20 seconds
25 seconds
Rounding up, a minimum of 20 seconds should be provided to
ensure pedestrian safety.
What is the primary reason for using the Highway Capacity Manual (HCM) methodology in capacity analysis, especially for urban intersections?
It emphasizes vehicle speed
It focuses only on free-flow conditions
It simplifies roundabout analysis
It incorporates pedestrian and bicycle traffic
During a traffic signal timing analysis, an engineer determines that the total cycle length for the intersection is 90 seconds. If the green time for the main road is set at 60 seconds, what is the maximum allowable clearance interval for the main road, assuming a safe stopping distance for vehicles?
10 seconds
30 seconds
20 seconds
15 seconds
During a safety audit of a freeway interchange, it is noted that the sight distance for vehicles merging onto the freeway is inadequate. What immediate action should the engineer
Increase the speed limit on the freeway.
Extend the length of the acceleration lane.
Reduce the number of lanes on the freeway.
Add more signage on the entrance ramp.
During a traffic study, an engineer determines that the existing signal timing does not accommodate high pedestrian demand during school hours. What immediate adjustment should be made?
Decrease the green time for vehicles
Increase the total cycle length
Add more pedestrian crossing signals
Implement flashing school zone signals
A bicycle lane is to be constructed with a physical separation from motor vehicle traffic. According to best practices, what is the minimum recommended width for this separated bike lane to ensure cyclist comfort and safety?
6 feet
5 feet
4 feet
8 feet
In capacity analysis of a roundabout, which geometric feature has the most significant effect on the entry capacity?
Entry angle of the approach
Diameter of the roundabout
Number of circulating lanes
Presence of pedestrian crossings
A contractor estimates that the quantity of asphalt needed for a road project is 15,000 tons. If the unit cost of asphalt is $80 per ton, what is the total estimated cost for asphalt?
$1 million
$1.8 million
$1.2 million
$1.5 million
?? Unit Cost. Thus, Total Cost = 15,000 tons ?? $80/ton = $1.2 million.
In a study of traffic signal timing, an engineer finds that the yellow signal interval is currently set to 3 seconds. For a speed limit of 35 mph, what should be the minimum yellow interval to ensure safe stopping distances?
4 seconds
3 seconds
5 seconds
6 seconds
During a traffic signal design review, an engineer finds that the yellow signal interval is currently set to 3 seconds. If the speed limit is 35 mph, what should be the recommended minimum yellow interval to ensure safe stopping distances?
4 seconds
6 seconds
5 seconds
7 seconds
If a transportation system experiences an increase in average daily traffic (ADT) from 20,000 to 30,000 users within a year, and the corresponding increase in maintenance costs is estimated at $150,000 annually, what is the cost per additional user attributed to the increase in traffic?
A. $3.00 B. $10.00 C. $17.50 D. $15.00
= $15.00.
A city is updating its bicycle facility design standards. If a bike lane is to be separated from vehicle traffic by a vertical barrier, what is the minimum recommended width for the bike lane to
4 feet
5 feet
6 feet
8 feet
For a two-way street experiencing heavy congestion, which traffic management strategy is most effective in improving flow without significant infrastructure changes?
Implementing a one-way street system
Adjusting signal timings to optimize green phases
Increasing the number of lanes
Introducing tolls for peak-hour use
What is the primary consideration in the design of a freeway exit ramp to ensure safe deceleration for vehicles exiting the highway?
The length of the deceleration lane.
The width of the ramp.
The slope of the ramp.
The signage provided.
In a freeway merge area, what is the recommended design speed for the merging section to minimize conflicts between entering and existing vehicles?
The speed limit of the freeway.
10 mph below the freeway speed limit.
5 mph above the ramp speed limit.
The average speed of merging vehicles.
In the context of transportation planning, what does the term "induced demand" refer to?
The reduction in vehicle usage due to high fuel prices
The decrease in travel time due to improved transit services
The shift of users from public to private transport
The increase in traffic due to new road construction
In a neighborhood traffic-calming plan, which of the following features is most effective at reducing vehicle speeds while improving safety for non-motorized users?
Roadway narrowing
Increased lane widths
Higher speed limits
Additional signage
areas.
In a design review for pedestrian facilities, it was noted that a proposed crosswalk lacks adequate visibility. Which of the following features should be implemented to improve visibility and safety for pedestrians?
Removing street furniture
Installing decorative lighting
Adding high-visibility pavement markings
Widening the roadway
When assessing the safety performance of an intersection,
which statistical measure is most frequently used to evaluate the effectiveness of safety improvements?
Crash Modification Factor (CMF)
Average Daily Traffic (ADT)
Level of Service (LOS)
Vehicle miles traveled (VMT)
During the evaluation of a roundabout, the engineer finds that the entry angle for vehicles is acute. What impact does this have on the operation of the roundabout?
Increases vehicle speed
Increases conflict points
Improves safety for pedestrians
Reduces the need for signage
A shared-use path is proposed adjacent to a roadway with a speed limit of 45 mph. What is the minimum recommended lateral offset distance from the edge of the roadway to the shared-use path to ensure user safety?
1 foot
5 feet
3 feet
10 feet
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