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).

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).

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter13: Evaluating Transportation Alternatives

Section: Chapter Questions

Problem 17P

See similar textbooks

Similar questions

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.
Current truck traffic volumes (in AADTT) for a six-lane highway are shown in the table below. An asphalt pavement with a 20 year design life is to be designed according to the Hveem method. It is assumed that traffic volumes for each truck classification will grow linearly by 20 percent over the next 20 years. Current traffic Expanded Vehicle Type ESAL constant 20 year ESAL volume (AADTT) Volume 2-axle trucks 500 3-axle trucks 300 4-axle trucks 150 5-axle or more trucks 750 Total
Calculate the design traffic in million standard axles (MSA) and commercial vehicles per day (CVD) required for design of flexible pavement as per current Indian procedure (revised IRC method) for the following data: (i) Annual daily commercial vehicles at last count (May 2008) = 200 (ii) Rate of traffic growth = 6% (iii) Design life = 10 years (iv) Vehicle damage factor = 2 (v) The road is proposed to be completed in May 2011.
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
A pavement designer has arrived at a design traffic of 100 million standard axles for a newly developing national highway as per IRC:37 guidelines using the following data: design life = 15 years, commercial vehicle count before pavement construction = 4500 vehicles/day, annual traffic growth rate = 8%. The vehicle damage factor used in the calculation was A B 1.53 2.24 с 3.66 D 4.14
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.
Q: Given the data below: Daily Traffic Count Axle Load (Kips) (2-axle) (3-axle) 22 (4-axle) 40 (5-аxle) 50 (б-аxle) 50 SN is 5, P,34.2, Р,%33, design life is 15 years, growth rate is 2.5%, lane distribution factor = 0.45, AADT = 1600 Calculate the ESAT. 2.
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.
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 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
Calculate ESAL in the design lane for 20 year design period for asphalt (assume TSI= 2.5) and concrete (assume TSI= 2.5 and D = 9 inch) pavement, respectively, based on the initial traffic of single axle-loads shown below, given that the yearly rate of growth 2%, Direction Distribution Factor -50%, Lane Distribution Factor = 75% Axle Load Number (kip) 18 20 22 24 26 28 30 32 34 per day 61.4 47.2 21.4 12.9 6.1 2.9 1.2 0.7 0.3
Given the data below: Daily Traffic Count Axle Load (Kips) 1000 (single axle cars) 300 (single axle buses) 120 (tandem axle trucks) 100 (tandem axle trucks) 50 (triple axle trucks) 22 40 50 50 SN is 5, P = 4.2, P; = 3, design life is 20 years, growth rate is 5%, lane distribution factor = 0.45 EASL Calculate the !