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ce416 quiz 4/5
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Gravity
Terms in this set (20)
Which of the following is not a macromeasure?
A. Flow
B. Speed
C. Density
D. None
D. None
(T/F) The higher the time headway, the higher the flow.
False
(T/F) An increase in spacing results in an increase in density.
False
(T/F) Macromeasures can be aggregated to determine micromeasures.
False
(T/F) There is a linear relationship between flow and density for both autonomous and human driven vehicles.
False
Which of the following is the most common in Transportation Engineering?
A. FIFO
B. LIFO
C. SIRO
D. None
A. FIFO
Which of the following queuing model was not covered in this course?
A. D/D/1
B. D/M/1
C. M/D/1
D. M/M/N
B. D/M/1
Traffic intensity is less than 1 for all except:
A. M/D/1
B. M/M/1
C. M/M/N
D. None
C. M/M/N
(T/F) Traffic intensity is the same as utilization factor.
False
(T/F) Under the same conditions, M/D/1 predicts more delays than M/M/1.
False
For a 4-leg signalized intersection, the number of crossing conflict is: A. 4
B. 8
C. 12
D. 16
D. 16
(T/F) Intersection is a crossing of two or more roadways at different grades.
False
(T/F) When queued through vehicles are blocking the entrance of the turn bay, it is called spillover.
False
(T/F) Yellow time is also called clearance interval.
False
(T/F) Protected movement does not need to yield to conflicting movements including pedestrians.
True
Permitted left turning vehicles should yield to all of the following except:
A. Opposing through traffic
B. Opposing right turning traffic
C. Pedestrians
D. None
D. None
(T/F) For a semi-actuated signals, the detection mechanism should be on a major street.
False
(T/F) Critical lane groups are determined per approach.
False
(T/F) If an all-red interval does not exist, then the yellow time is considered as both the change and clearance intervals.
True
Which of the following is the most significant factor affecting progression quality?
A. Signal spacing
B. Vehicle speed
C. Cycle length
D. All
D. All
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Verified questions
ENGINEERING
Develop well-structured programs to determine the square root of the sum of the squares of the elements of a two-dimensional array and normalize a matrix by dividing each row by the maximum absolute value in the row so that the maximum element in each row is 1.
ENGINEERING
A compressor in a commercial refrigerator receives R-410a at −25$^{\circ} \mathrm{C}$ and unknown quality. The exit is at 2000 kPa, 60$^{\circ} \mathrm{C}$ and the process is assumed to be reversible and adiabatic. Neglect kinetic energies and find the inlet quality and the specific work.
ENGINEERING
(a). Evaluate the polynomial $$ y = x^3 - 5x^2 + 6x + 0.55 $$ at x = 1.37. Use 3-digit arithmetic with chopping. Evaluate the percent relative error. (b). Repeat (a) but express y as y = ((x – 5)x + 6)x + 0.55 Evaluate the error and compare with part (a)
ENGINEERING
Two methods to control newly discovered poisonous weeds in bar-ditches on the sides of county roads in New Farmendale are under consideration. Method A involves use of a 20-year life lining at an initial cost of $14,000 and an annual maintenance cost of$3 per kilometer (km). Method B involves spraying a chemical that costs $40 per liter. One liter will treat 8 km, but the treatment must be applied four times per year. In determining the number of km per year that would result in breakeven, the variable cost for method B is closest to: (a)$5 per km (b) $15 per km (c)$20 per km (d) $40 per km