Green and economic fleet replacement modeling : part I.

Details

• Creators:
  Kim, David S. ; Porter, J. David ; Figliozzi, Miguel A.
• Corporate Creators:
  Oregon State University. School of Mechanical, Industrial and Manufacturing Engineering ; Portland State University. Department of Civil & Environmental Engineering
• Corporate Contributors:
  Oregon. Dept. of Transportation. Research Unit ; Oregon Transportation Research and Education Consortium
• Subject/TRT Terms:
  • Equipment replacement
  • Fleet management
  • Environmental policy
  • Environmental impacts Equipment replacement, Fleet management, Engineering economics
• Publication/ Report Number:
  OTREC-RR-11-03
• Resource Type:
  Tech Report
• Geographical Coverage:
  Oregon
• Corporate Publisher:
  Oregon. Dept. of Transportation. Research Unit
• Abstract:
  "The purpose of this study was to gain a better understanding of how equipment replacement decisions are supported with data collection and ; quantitative models at state DOTs, and to determine if models found in the research literature offer any better decision support when applied to ; realistic fleet usage and cost data. This study also addressed the current state of equipment replacement at state DOTs with respect to using ; measurable “green” criteria in replacement decisions, and the development of new quantitative replacement models utilizing such criteria. ; The responses from 25 state DOTs indicates that there is little consistency in the criteria used by state DOTs to support replacement decisions ; and the way that these criteria are used. There are also no measurable “green” criteria utilized. However, most state DOTs maintain an ; information system where cost and usage data is recorded, stored, and utilized as part of the replacement process. To investigate if a particular ; modeling approach offers better performance than the variety of approaches used in practice, a simulation study was conducted. Simulation ; models were used to evaluate the effectiveness of replacement models for prioritizing equipment replacement. The models evaluated come from ; the research literature and were compared to a simple replacement model that is similar to those used by state DOTs. Results indicate that the ; simple models used in practice provide similar results to the best model from the research literature."
  More +
• Format:
  PDF
• Funding:
  OTREC 2010-305
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/23384/dot_23384_DS1.pdf
• File Type:
  [PDF - 1.22 MB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha-512:253340067f11c555fe7e538c0b26e6552ae80f3c3330d0db37261315d5f903aa1209c49a90eb3c834ecc2e364b0a3d733f739a7ed654d53405937d6148f690b5