LIFE CYCLE OPTIMIZATION OF OWNERSHIP COSTS AND EMISSIONS REDUCTION IN US VEHICLE RETIREMENT DECISIONS

This study provides a framework for understanding overall vehicle economics and key economic variables in relation to individual ownership costs, operating decisions and replacement intervals. In combination with a parallel study of vehicle emissions and the implications for retirement, a more comprehensive view of the complex economic, environmental, and social systems surrounding automobile retirement in the US is possible. The economic drivers examined here may provide some explanation for the observed trend of increasing age of the US vehicle fleet. Optimization of private ownership costs required relatively long vehicle replacement intervals (app. every 18 years) creating incentive for longer vehicle life. Aging vehicles offer increased potential for the high emitters targeted by scrappage programs. While long replacement intervals are favored for private costs, energy, and carbon dioxide emissions, these same intervals provide criteria air pollutant emission levels that are as much as 86% higher than optimal.

Language

  • English

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Filing Info

  • Accession Number: 00988204
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: Mar 23 2005 12:00AM