Estimated Cost Alternatives (present value) Useful life Element Year A B Row 40 $0 $40,000 $60,000 Grading 40 $50,000 $320,000 $420,000 Structures 40 $30,000 $220,000 $370,000 Pavement $40,000 $340,000 $280,000 Distance 13 miles 8 miles 7.5 miles Annual Maintenance $1000/mile for all alternatives Total Road user costs (annual) $ 261,000 $ 181,000 $ 170,000 By use of the benefit-cost method determine which of the three alternatives should be recommended, if A- Alternative B- C- any. 40 years, 8% interest = 0.08386 20 years, 8% interest = 0.10185 CRF=(A/P) for 20

Traffic engineering

What is the capacity of a freeway with 2-lanes in one direction, 10 ft lanes, 1 ft shoulders and 4 ramps within a six-mile stretch? Show Work Correct Answer: 2335

hree routes connect an origin and a destination with performance functions: ?1=8+0.5?1; ?2=1+2?2; and ?3=3+0.75?3; with the x’s being the traffic volume expressed in thousands of vehicles per hour and t’s being the travel time expressed in minutes. If the peak hour traffic demand is 3400 vehicles, determine user equilibrium traffic flows. [Hint: Note that one of the paths will not be used under the equilibrium condition

28 pedestrians per cycle (both directions combined) use a crosswalk to cross a 72-ft wide street. The width of the crosswalk is 11 ft. If the walking speed is 3.5 ft/s, how much τi,ps should be allocated so that the pedestrians can safely cross? Group of answer choices 31.0 sec 21.2 sec 56 sec 52.8 sec

A two-lane, one-way, rural freeway segment is being designed to service a demand volume of 4,000 vehicles per hour. The PHF is expected to be 0.95. If the combination of trucks, buses, and recreational vehicles is represented by a heavy vehicle adjustment of 0.85, what is the flow rate (pcphpl)? Provide your answer to the nearest integer.

If Vf = 2327 VPH with 9% trucks, VR1 = 653 VPH with 5% trucks, and VR2 = 594 VPH with 8% trucks, what is the passenger car equivalents (Vpcph) of the onramp? Assume that the roadway is urban.

(PLEASE USE FIGURE 14.5 TO ANSWER THE QUESTION) A consecutive upgrade consists of two sections, the first of 2 percent grade and 5000 ft long, and the second of 6 percent grade and 5000 ft long. Trucks comprise 10 percent of traffic. And recreational vehicles comprise 6 percent. Determine: the equivalent grade the PCEs