A Methodology To Estimate Vehicle Miles Traveled Vmt Fractions As An Input To The Mobile Emission Model

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A Methodology To Estimate Vehicle Miles Traveled Vmt Fractions As An Input To The Mobile Emission Model

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Author : Brian L. Smith
language : en
Publisher:
Release Date : 2006

A Methodology To Estimate Vehicle Miles Traveled Vmt Fractions As An Input To The Mobile Emission Model written by Brian L. Smith and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Air quality management categories.

Air quality has been an issue of growing importance to the transportation sector since the enactment of the Clean Air Act Amendments of 1990 and the Transportation Equity Act for the 21st Century in 1998. According to these acts, states and local governments are required to attain and maintain National Ambient Air Quality Standards. The MOBILE model is the mobile emission factor model used in estimating air pollutants generated by mobile sources. In order to obtain accurate emission estimates, MOBILE must be provided with sound input data that accurately reflect local conditions. Among many input factors, vehicle miles traveled (VMT) fractions - the percentage of VMT for each vehicle type by roadway functional class - play a critical role. In this study a new methodology for estimating locally specific VMT fractions as an input to the MOBILE model was developed. Based on this methodology, VMT fractions were computed for the six non-attainment areas in Virginia: Frederick County, Fredericksburg, Hampton Roads, Northern Virginia, Richmond, and Roanoke. These estimates were compared with fractions estimated using existing methodologies. The comparison revealed significant differences. These differences, coupled with the fact that the proposed methodology uses significantly more local data and requires fewer assumptions than existing methods, illustrate the need for the Virginia Department of Transportation (VDOT) to reconsider its approach to applying the MOBILE model. Based on the results of this research effort, it is recommended that VDOT's Environmental Division use the proposed VMT fraction estimation methodology to generate input to the MOBILE model for mobile source emission estimates. This methodology will benefit VDOT by estimating mobile source emissions that better reflect local conditions. The cost of implementing the recommendation is minimal. Estimation of VMT fractions is a current activity, and the new methodology requires equivalent or less effort to the existing approach. In addition, required data for the proposed methodology can be obtained at no additional cost.

Improving Transportation Data For Mobile Source Emission Estimates

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Author : Arun Chatterjee
language : en
Publisher: Transportation Research Board
Release Date : 1997

Improving Transportation Data For Mobile Source Emission Estimates written by Arun Chatterjee and has been published by Transportation Research Board this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Law categories.

Journal Of Transportation And Statistics

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Author :
language : en
Publisher:
Release Date : 2003

Journal Of Transportation And Statistics written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Transportation categories.

User S Guide To Mobile5

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Author :
language : en
Publisher:
Release Date : 1994

User S Guide To Mobile5 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Automobiles categories.

Air Quality 2006

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Author : National Research Council (U.S.). Transportation Research Board
language : en
Publisher:
Release Date : 2006

Air Quality 2006 written by National Research Council (U.S.). Transportation Research Board and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Air categories.

Modeling Trip Duration For Mobile Source Emissions Forecasting

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Author : Harikesh Sasikumar Nair
language : en
Publisher:
Release Date : 2000

Modeling Trip Duration For Mobile Source Emissions Forecasting written by Harikesh Sasikumar Nair and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Air categories.

Federal Register

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Author :
language : en
Publisher:
Release Date : 1997-02-11

Federal Register written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-02-11 with Administrative law categories.

Land Use Scenarios

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Author : Alan W. Shearer
language : en
Publisher: CRC Press
Release Date : 2009-01-14

Land Use Scenarios written by Alan W. Shearer and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-01-14 with Nature categories.

Any alteration of the natural processes occurring on a piece of land will have expected as well as unanticipated effects, and those effects have little regard for arbitrary human boundaries. Consequently, it is not enough for land managers to consider only how they might maintain the parcels for which they are responsible; they must also anticipate

Report

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Author :
language : en
Publisher:
Release Date : 2002

Report written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Highway research categories.

Guidelines For The Implementation Of Multimodal Transportation Location Referencing Systems

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Author : Teresa M. Adams
language : en
Publisher:
Release Date : 2001

Guidelines For The Implementation Of Multimodal Transportation Location Referencing Systems written by Teresa M. Adams and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Transportation categories.