MSA (Million standard axles) & VDF (Vehicle damage factor) Software

Описание: MSA & VDF Software for Design of Flexible Pavement Thickness.

Calculate MSA (Million standard axles) and VDF (Vehicle damage factor) by Importing Traffic Survey Data and Axle Load Survey.

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This module is used for the calculation of MSA and VDF for the design of flexible pavement thickness. It mainly caters and follows the guidelines as specified in Relevant Indian Road Congress (IRC) Codes. This module can be used for the analysis of VDF (Vehicle Damage Factor) and MSA (Million standard axles). The information obtained can be used in the final computation of pavement layers.

MSA(Million Standard Axle), is used for Designing of the Pavement. In the Indian context, the standard axle is defined as an axle having four wheels, two on either side having tire pressure of approximately 0.56 MPa and carrying a total load of 80 kN.

Indian Roads Congress has specified the design procedures for flexible pavements based on CBR values. These guidelines will apply to the design of flexible pavements for Expressway, National Highways, State Highways, Major District Roads and other categories of roads.

The vehicle damage factor (VDF) is a multiplier for converting the number of commercial vehicles of different axle loads and axle configurations to the number of standard axle-load repetitions. It is defined as the equivalent number of standard axles per commercial vehicle. The VDF varies with the axle configuration, axle loading, terrain, type of road, and from region to region. The axle load equivalency factors are used to convert different axle load repetitions into equivalent standard axle load repetitions. For these equivalency factors refer to IRC:37 2001. The exact VDF values have arrived after extensive field surveys.

You can easily use the MSA/VDF Module of ESurvey Trans Software for calculation of Million Standard Axles and Vehicle Damage Factor for the design of flexible pavement thickness. You can obtain these values in simple steps.

1. Enter Project Details and values for Lane Distribution Factor, Directional Distribution Factor, No. Of years for MSA Calculation and Minimum VDF in Settings. Enter the Vehicle Type and the respective codes and Axle weights.

2. Import the field data obtained from field studies along specified stretches of roads, and save it into the module.

3. The VDF (Vehicle Damage Factor) and MSA (Million standard axles) analysis report can be obtained, which can be exported to an editable excel file. This Report shows the Traffic, Rate of the Growth, VDF and MSA (Yearly and Cumulative) year-on-year for the specified period.

You can also update the Growth Rate of Vehicle manually and obtain the MSA Report. This information can be used to compute the Flexible Pavement Design.

Read more:
https://esurveying.net/transportation...