A grader will be used to maintain 5 miles of haul road. It is estimated the work will require removing ruts with three passes in first gear, leveling the road with two passes in second gear, and final shaping of the road with three passes in fourth gear. Use an efficiency factor of 80%. Grader speeds are provided in the chart. Estimate the time requirement for this task. Forward Gears Maximum Travel Speed (mph) First 2.5 Second 3.1 Third 4.2 Fourth 7

A grader will be used to maintain 5 miles of haul road. It is estimated the work will require removing ruts with three passes in first gear, leveling the road with two passes in second gear, and final shaping of the road with three passes in fourth gear. Use an efficiency factor of 80%. Grader speeds are provided in the chart. Estimate the time requirement for this task. Forward Gears Maximum Travel Speed (mph) First 2.5 Second 3.1 Third 4.2 Fourth 7

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter14: Highway Surveys And Location

Section: Chapter Questions

Problem 17P: The following table shows the stations and ordinates for a mass diagram. The free-haul distance is...

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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.
Q7. A 25 miles of gravel road require reshaping and leveling. You estimate that a motor grader will require two passes at 3 mph, two passes at 4 mph, and two pass at 5 mph to accomplish the work. How many grader hours will be required for this work if the job efficiency factor is 0.8?
solve question 3 please
Please solve both part and not Copypaste
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A roadway project will be constructed in 2026 as flexible pavement, pt= 2.5, expected SN=4 and has a 20-year design life. Design work was done in 2021, with growth rate of 6%. The traffic survey gives axles loads shown in table above. Find the design ESAL according to AASHTO design method. Truck type Type-1 Type-2 Type-3 Type-4 Type-5 Type-6 Axle Category 1-single axle of 30 kips 1- tandem axle of 32 kips 1-single axle of 18 kips 2- tandem axle of 40 kips 1-single axle of 20 kips 1- tandem axle of 36 kips 1- tandem axle of 50 kips 2-single axle of 38 kips 1- tandem axle of 52 kips 2-single axle of 14 kips 1- tandem axle of 32 kips 1- triple axles of 50 kips 1-single axle of 40 kips 1- tandem axle of 32 kips Type-7 CS CamScanner triple axies of 58 kips J 2-single axle of 22 kips 1- tandem axle of 38 kips % Total AADT 9% 10% 7% 5% 3% 5% 4% 12:
Round your answer to 1 decimal place.
Wrong answer will be rated negative. The horizontal distance between its PVI and PVC is 150 meter. The elevation of PVI is 450.2 meter. The initial and final grades of the road are -4% and +3% respectively. Chainage of PVC is 1620 m. Based on the given set of information, determine the followings: i. Elevation of PVC. ii. The chainage of PVI. iii. Chainage and elevation of PVT. iv. Chainage and elevation of the lowest point of the sag curve.
A roadway project will be constructed in 2026 as flexible pavement, pt-2.5, expected SN= 4 and has a 20-year design life. Design work was done in 2021, with growth rate of 6%. The traffic survey gives axles loads shown in table above. Find the design ESAL according to AASHTO design method. Truck type Axle Category Type-1 1-single axle of 30 kips 1- tandem axle of 32 kips 1-single axle of 18 kips 2- tandem axle of 40 kips 1-single axle of 20 kips 1- tandem axle of 36 kips 1- tandem axle of 50 kips 2-single axle of 22 kips 1- tandem axle of 38 kips 2-single axle of 38 kips 1- tandem axle of 52 kips 2-single axle of 14 kips 1- tandem axle of 32 kips 1- triple axles of 50 kips 1-single axle of 40 kips 1- tandem axle of 32 kips CS Cams Typer triple axies of 58 kips Type-2 Type-3 Type-4 Type-5 Type-6 % Total AADT 9% 10% 7% 5% 3% 5% 4%
Refers to irregularities in the pavement surface that affect the smoothness of the ride.Blank 1 Blank 1 Add your answer
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