An axle weight study on a section of highway gave the following data on axle load distribution. Determine the truck factor for this section of highway. Assume SN = 4 and p, = 2.5. Axle Load Group: Single (1,000 lb) No. of Axles per 1,000 Vehicles 689 Axle Load Group: Tandem (1,000 lb) No. of Axles per 1,000 Vehicles 781 487 487 4 7 0 6 10 10 14 14 14 18 20 20 22 24 26 truck factor= 0.485346 X 154 154 59 41 43 7 4 3 4 10 16 22 22 28 32 34 36 38 40 10 18 234 174 174 110 118 156 155 199 64 64 31 12 4 1

An axle weight study on a section of highway gave the following data on axle load distribution. Determine the truck factor for this section of highway. Assume SN = 4 and p, = 2.5. Axle Load Group: Single (1,000 lb) No. of Axles per 1,000 Vehicles 689 Axle Load Group: Tandem (1,000 lb) No. of Axles per 1,000 Vehicles 781 487 487 4 7 0 6 10 10 14 14 14 18 20 20 22 24 26 truck factor= 0.485346 X 154 154 59 41 43 7 4 3 4 10 16 22 22 28 32 34 36 38 40 10 18 234 174 174 110 118 156 155 199 64 64 31 12 4 1

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter19: Design Of Flexible Highway Pavements

Section: Chapter Questions

Problem 4P

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An axle weight study on a section of highway gave the following data on axle load distribution. Determine the truck factor for this section of highway. Assume SN = 4 and p₁ = 2.5. Axle Load Group: Axle Load truck factor = No. of Axles per No. of Axles per Single (1,000 lb) 1,000 Vehicles Group: Tandem (1,000 lb) 1,000 Vehicles 4 6 691 4 18 793 10 238 10 485 16 166 14 149 22 116 18 62 28 153 20 41 32 67 22 7 34 31 24 4 36 12 26 3 38 4 40 1
An axle weight study on a section of highway gave the following data on axle load distribution. Determine the truck factor for this section of highway. Assume SN = 4 and Pt = 2.5. Axle Load Group: Single (1,000 lb) 4 No. of Axles per 1,000 Vehicles Axle Load Group: Tandem (1,000 lb) No. of Axles per 1,000 Vehicles truck factor = 6 10 14 18 20 22 24 26 696 796 513 152 61 41 7 4 3 4 10 16 22 28 32 34 36 38 40 18 241 168 116 153 64 29 12 4 1
A. Given Design years for 2 direction of road Number of lanes. 2 lanes ADT - 3500 Calculate the ESAL for one direction of road 20 years Wheel Load (kN) Equivalent Load Factors % in total traffic volume 45 0.03 25 20 0.044 16 150 15 8 80 2.5 25 165 25 21 285 42 2.
An axle weight study on a section of highway gave the following data on axle load distribution. Determine the truck factor for this section of highway. Assume SN = 4 and p = 2.5. truck factor Axle Load Group: Single (1,000 lb) 4 6 10 14 18 20 22 24 26 No. of Axles per 1,000 Vehicles 695 783 498 151 62 39 7 4 3 Axle Load Group: Tandem (1,000 lb) 4 10 16 22 28 32 34 36 38 40 No. of Axles per 1,000 Vehicles 18 243 171 122 151 68 29 12 4 1
4.7 PROBLEMS 4.7.3 Axle load study conducted on a stretch of road in 2017 yield theşe results: Axle load range (ton) 2 - 4 4 - 6 6 -8 8 - 10 10 - 12 12 – 14 No. of axle 500 710 599 621 452 168 Number of commercial vehicles for the particular day is 1860. Based on Road Note 31, determine: a) Average number of axle per commercial vehicle; b) Total equivalent standard axle for that particular day; c) Average number of standard axle per commercial vehicle; and d) Average number of standard axle per commercial axle.
A. Given 20 years Design years for 2 direction of road Number of lanes = 2 lanes ADT = 3500 %3D Calculate the ESAL for one direction of road Wheel Load (kN) Equivalent Load Factors % in total traffic volume 45 0.03 25 20 0.044 16 150 15 8 80 2.5 25 165 25 21 285 42
The traffic load distribution (TLD) of the axle groups of an urban road (Highway A) is shown in the table below. You can download this table from vUWS. Table: TLD Load (KN) SAST Total SADT 20 14.470 37.925 40 10.358 17.999 60 74.654 28.051 80 0.474 9.225 100 0.044 6.801 Reference loads (KN) 53.0 TAST 80.0 0.370 2.000 45.736 16.523 35.371 100.000 100.000 Proportions 0.355 0.221 0.136 0.121 TADT TRDT 1.974 0.118 7.387 14.200 2.972 2.917 50.600 54.449 14.424 15.879 21.141 24.530 17.347 21.320 50.743 100.000 100.000 100.000 100.000 0.143 0.024 90.0 135.0 QADT 181.0 221.0 Determine the NHVAG and damage index ESA/HVAG for Highway A.
Question 4 a) The axle load data collected on a section of a highway for a short duration for 2 and 3 - axle trucks are presented in Table 1. Determine the ESAL per axle, total ESAL per truck and the truck factors for 2 and 3-axle trucks. Table 1: Axle load data Vehicle питber No. of axles Axle Weight (tons) Axle 3 Axle 4 Axle 5 Date Сommodity Axle 1 Axle 2 15-Jul-10 GR 6687 -10 16-Jul-10 GW 4925 S 15-Jul-10 AS 4602 Z 15-Jul-10 BA 4772 C 16-Jul-10 GR 2706 09 15-Jul-10 GR 9626 E 16-Jul-10 WR 9290 C 15-Jul-10 AS 6865 Q charcoal 3 4.00 10.20 5.20 13.60 16.80 cement 5.50 lumber 10.20 4.00 14.60 charcoal charcoal charcoal 2 6.10 4.20 14.20 8.50 19.80 13.20 charcoal 5.10 13.70 charcoal 8.40 14.90 6.10
4.7 PROBLEMS 4.7.1 Calculate the equivalent standard axle load for these vehicles: a) A two axles truck with BG1=6000 kg and BG2=10000 kg; b) A three axles truck with BG1=6000 kg, BG2=10000 kg and BG3=10000 kg; and c) An articulated truck consisting of a semi-trailer with BG1=6000 kg, BG2=7500 kg, BG3=7500 kg and a trailer with BG1=6000 kg, BG2=6000 kg, BG3=6000 kg, and BG4=6000 kg.
A traffic survey conducted on a road yields an average daily traffic count of 5000 vehicles. The axle Load distribution on the same road is given. in the following table: Axle Load (tonnes) 18 14 10 8 6 Frequency of traffic (%) 10 20 35 15 20 The design period of the road is 15 years, the yearly traffic growth rate is 7.5% and the load safety factor (LSF) is 1.3. If the vehicle damage factor (VDF) is calculated from the above data, the design traffic (in million standard axle Load, MSA) is
Situation: A proposed four-lane divided highway is to be constructed using asphalt concrete surface layer. Table below shows the fvevRAr traffic data collected from DPWH regional office along the proposed alignment. Load per axle, Ibs 2,000 10,000 14,000 6,000 Vehicle Number of Description AADT Code axles В, В1, В2 12-2 12-3 Light Vehicles (sedan, SUV, pickup) Semi-trailer trucks Truck semi-trailer Public buses, single-unit trucks 75,000 4,000 1,500 15,700 5 D-4 2 Forecasted annual traffic growth Percentage of traffic on design lane Design service life of pavement = 4.Y% = 32% = 20 years Moreover, the regional office plans to adapt a flexible pavement with the following specifications listed below. Resilient modulus of asphalt concrete Resilient modulus of base course Resilient modulus of subbase course = 420 ksi California Bearing Ratio (CBR) of base course material California Bearing Ratio (CBR) of subbase material California Bearing Ratio (CBR) of subgrade material - 28.5 ksi = 15…
Q-- If the axle load of a vehicle is 25 tonnes on a road then find the value of vehicle damage factor VDF. Standard load is considered as 9 tonnes.