Assume the OPI of non-interstate highways in the district is 70. The total lane-miles of interstate in this district are 500 miles while the total line-miles of non-interstate highways are 3,500 miles. What is the OPI of all pavements in the district?
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Assume the OPI of non-interstate highways in the district is 70. The total lane-miles of interstate in this district are 500 miles while the total line-miles of non-interstate highways are 3,500 miles. What is the OPI of all pavements in the district?
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- From the traffic counting in 2020, the average commercial vehicle per day is 500 (10% commercial vehicle) and the traffic growth rate is estimated at 5%. A pavement needs to be designed for 15 years and is expected to open for the public in 2022. Using ATJ 5/85 method, estimate the total number of vehicles per direction during the first year of service. * 100740 213669 O 1108240 O 2173824Q: In your opinion as a (roads & bridges engineer) to design high traffic areas or urban. what is the type of highway pavement that you select to design? . And explain why you select this type ?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
- A 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).Briefly define facility and user costs for pavement work.A state toll highway authority is planning to expand the pavement deflection monitoring program for its 500 miles of toll highways. The requirements state that a 20 percent change in pavement deflection should be detectable in at least 9 out of every 10 tests. If the state authority currently monitors 100, 1-mile-long segments, determine the expansion needed in its deflection program to comply with the new requirements.
- Pavement Management Systems is a tool for the pavement engineer to decide WHERE, WHEN, and HOW and action will be done based on socio-economic considerations. With all the data collections, analysis, and reporting, how these components benefit the stakeholders of a highway system.Discuss about the effect of overloading of trucks to the pavement condition.A transportation agency is planning a pavement roughness data collection program to monitor statewide pavement performance. Assuming that 10 percent of change in roughness should be detectable at 95% confidence level, how many 1-mile pavement segments should be included in the annual condition survey? There are 20,000 center-line miles of pavement in total.
- 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.The pros and cons of performing periodic pavement maintenance throughout a pavements lifespan.Based on the information given, design a pavement for a 2-lane rural road in a flat setting. (a) Design period of 10 years (b) Commercial traffic volume of less than 100 CV (c) Unladen weight >1.5 tons per day (one direction) (d) Traffic volume over a design period between 100,000 to 500,000 CV