An asphalt plant can produce 330 tons per hour. A project requires paving individual 12-ft lanes with a 3 inch lift averaging 110 lb/sy-in. What average paver speed will match the plant production? Group of answer choices 25.0 ft/min 8.3 ft/min 900.0 ft/min 2.8 ft/min
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- Design is required for a new pavement to be constructed in 2010. The annual average daily traffic for commercial vehicles on the opening day will be 2000. Growth rate = 4% Design Life = 20 years Solve for the design traffic in msa using 2 decimal places.Problem Calculate the pavement width? for two directions divided highway. The current daily traffic count for one direction for four days is shown in the table below Traffic volume count for one direction Day No of passenger cars/day No of trucks & buses/day No of trucks with trailers Sunday 9047 4918 221 Monday 7959 3640 155 Tuesday 9890 3587 167 Wednesday 5879 4383 243 Assume Design period = 25 years, Traffic annual growth rate = 3%, K=0.10, lane capacity 1100 P.C.E/hr, lane width= 4m, shoulder width = 3m, and median width = 2m.A highway is projected to carry 16,000 vehicles per day (10% of which will be 3-axle trucks with an axle load equivalency factor of 0.088) upon opening and 4% growth rate over the next 25 years. If an estimated 40% of traffic is to be in the design lane, the number of ESALS to be used in pavement design is: O 1.84 x 106 O 2.57 x 106 O 2.57 x 107 O 8.57 x 105 O 6.42 x 106
- Please solve fastA pavement has a design life of 20 years and design traffic of 75 msa for a newly developing National Highway. Number of commercial vehicles after construction of pavement is 4200 vehicles per day. If vehicle damage factor is taken as 1.05 and annual rate of traffic growth is taken as 8%, then the value of lane distribution factor adopted is. (Round off to two decimal places).A northbound direction on an interstate highway consists of three lanes of flexible pavement. The subgrade CBR is 4.5, the overall standard deviation is 0.38, and the reliability is 95%. The initial PSI is 4.5 and the final PSI is 2.5. Daily total northbound road traffic consists of 39,500 cars (each with two 2kip single axles), 775 buses ((each with two 19 kip single axles) and 1100 heavy trucks (each with two 10kip single axle and two 34kip tandem axles). If the pavement is designed to last for 20 years, what should be its structural number?
- Round your answer to 1 decimal place.The traffic projection for a new pavement of a two-lane rural dual carriageway is as follows: Design period = 25 years AADT in current year = 5000 vehicles per day Direction factor = 0.5 Percent of heavy vehicles = 6% Annual traffic growth = 6% Damage index: ESA/HVAG = 0.75; SAR5/HVAG = 0.95; SAR7/HVAG = 1.65; SAR12/HVAG = 19.65. %3D %3D Table 2 Traffic load distribution Load (kN) SAST SADT TAST TADT TRDT 70 0.21 0.12 0.31 0.18 0.21 80 0.34 0.29 0.21 0.48 0.41 90 0.45 0.59 0.48 0.34 0.38 Proportion of each axle group 0.136 0.294 0.315 0.103 0.152 a) Calculate the average number of axle groups per heavy vehicle NHvaG Using the data in the Table. b) Calculate the design traffic in HVAG (NDT). c) Calculate the design traffic in ESA, SAR5, SAR7 and SAR12.1) Calculate the time required to grade and finish 30 km of road formation of 9.0 m width for two-lane road with motor grader having width of 3.0 m, using six passes with speed for each of the successive two passes as 5 kmph, 7 kmph and 9 kmph respectively. Assume machine efficiency based on operator skill, machine characteristics and working conditions as 80%. 2) Calculate number of transit mixers (TM) required for transporting concrete from central batching plant to site. The cycle time data of a 6 m³ typical transit mixers is given below: Loading time of TM = 6.0 minutes. Travel time of loaded TM to site = 30 minutes Average waiting time at site = 5.0 minutes Discharge time of concrete at site through concrete pump 15 Travel time for return trip = 24 minutes minutes. If the central batching plant having average output of 60 m³/hr is to run continuously, work out the requirement of no. of concrete pumps and TM.
- on paper pleaseNoneA flexible pavement is designed with 5 inches of hot-mix asphalt (HMA) wearing surface, 6 inches of hot-mix asphaltic base, and 10 inches of crushed stone subbase. All drainage coefficients are 1.0. Daily traffic is 200 passes of a 20-kip single axle, 200 passes of a 40-kip tandem axle, and 80 passes of a 22-kip single axle.If the initial minus the terminal PSI is 2.0 (the TSI is 2.5), the soil resilient modulus is 3000 lb/in2, and the overall standard deviation is 0.6, what is the probability(reliability) that this pavement will last 20 years before reaching its terminal serviceability?