Estimate the number of lanes of a highway having a LOS E of 0.86 if its AADT is 32,000 pcu/day while having a peak hour factor of 25% and a directional distribution factor of 70%
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Estimate the number of lanes of a highway having a LOS E of 0.86 if its AADT is 32,000 pcu/day while having a peak hour factor of 25% and a directional distribution factor of 70%
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- Determine the level of service of a four lane-two way highway having a forecast of its AADT of 25,000 pcu/day a peak hour factor of 20% and a directional distribution factor of 55%The AADT for certain road sections is 25,000 vehicles/day. If the route is classified as an urban radial highway, what is the expected directional design hour volume range?Determine the number of lanes required to provide Level of Service “B”(0.50) for an urban street having an AADT forecast of 16,667 pcu/day a peak hour factor of 0.21 and a directional distribution factor of 0.75.
- Use the default k-factor and D-factor to determine the approximate DDHV of a section of highway in 20 years based on the following inputs: The current AADT is 88,000 vehicles Located in an urban area with moderate traffic fluctuation. Annual growth rate is 3%A traffic engineer urgently needs to determine the AADT on a rural primary road that has the volume distribution characteristics as discussed. She collected the data shown below on a Friday during the month of March. Determine the AADT of the road. 1:00 –2:00 p.m. = 600; 2:00 –3:00 p.m. = 645; 3:00 –4:00 p.m. = 730; 4:00 –5:00 p.m. = 780; 5:00 –6:00 p.m. = 815; 6:00 - 7:00 p.m. = 795Design Speed. If the AADT of a mountainous road section is 1600, and is expected to increase by 4% per year and the road is expected to last 15 years what would be the appropriate class of the road section if we are going to account the yearly increase? (Just indicate the number) *
- A 1.5-mile section of a two-lane road has an AADT of 10,000. In a three-year period, there have been 6 fatal accidents and 12 non-fatal accidents. The state allows 350 accidents per 100 mvm for three years, of which 100 are fatal. For which value of confidence level, this highway is considered safe? If the following countermeasures are implemented: widening the existing lane by 2 feet, and widening the existing shoulder by 2 feet paved, and widening the clear zone by 5 feet, what will be the number of accidents reduced if the AADT became 12,000?Determine the crash modification factor that can be used to estimate the change in frequency of the crash type targeted by a proposed improvement that will widen a two-lane rural highway from 9-ft-wide (per lane) to 11-ft-wide (per lane) if the highway has an AADT of 1500 veh/day.Given an AADT of 11 000 for a 2-lane highway and an 85th percentile Vehicle operating speed of 50km/h, what type of bicycle path would you recommend? Why? Explain your answer
- A proposed highway is to be designed with adequate shoulder and clearance ina level terrain with the following: AADT = 25,000 pcu/day D% = 65% K = 9% Estimatethe number of lanes that will provide LOS C. SHOW COMPLETE SOLUTIONa/ There was a need to know the volumes traffic for a rural project where 24 hrs. flows were counted on Thursday, Friday and Saturday in December as follow, Thursday = 8000, Friday = 8000 and Saturday = 10000. Q2 /b/ Design data is required for improvement of two – lane of two – way highway with central reserve. The current traffic in 2016 expressed by AADT is 3000 vehicles. The improved road with a design life of 20 years will opened to traffic in 2021, the estimated annual growth rate of traffic is 8%, K-factor is 12% of AADT and D (Directional distribution) is 55% of total traffic. Find DDHVA proposed highway is to be designed with adequate shoulder and clearance in a level terrain with the following: AADT = 25,000 pcu/day D% = 65% K = 9%. Estimate the number of lanes that will provide LOS C.