Evaluation of in-use fuel economy and on-board emissions for hybrid and regular CyRide transit buses.

Details

• Corporate Creators:
  Iowa State University. Center for Transportation Research and Education
• Subject/TRT Terms:
  • Bus transit
  • Hybrid vehicles
  • Electric vehicles
  • Fuel consumption
  • Exhaust gases
  • Carbon dioxide
  • Carbon monoxide
  • Nitrogen oxides
  • Alternatives analysis
  • Cost effectiveness
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• Resource Type:
  Tech Report
• Geographical Coverage:
  Iowa
• Edition:
  Final report.
• Corporate Publisher:
  Iowa State University. Institute for Transportation
• Abstract:
  The objective of this project was to evaluate the in-use fuel economy and emission differences between hybrid-electric and ; conventional transit buses for the Ames, Iowa transit authority, CyRide. These CyRide buses were deployed in the fall of ; 2010. ; Fuel economy was compared for the hybrid and control buses. Several older bus types were also available and were included ; in the analysis. Hybrid buses had the highest fuel economy for all time periods for all bus types. Hybrid buses had a fuel ; economy that was 11.8 percent higher than control buses overall, 12.2 percent higher than buses with model years 2007 and ; newer, 23.4 percent higher than model years 2004 through 2006, 10.2 percent higher than model years 1998 through 2003, ; 38.1 percent higher than model years 1994 through 1997, 36.8 percent higher than model years 1991 through 1993, and 36.8 ; percent higher for model years pre-1991. ; On-road emissions were also compared for three of the hybrid buses and two control buses using a portable emissions ; monitor. On-average, carbon dioxide, carbon monoxide, and hybrid carbon emissions were much higher for the control buses ; than for the hybrid buses. However, on average nitrogen oxide emissions were higher for the hybrid buses.
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• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/25586/dot_25586_DS1.pdf
• File Type:
  [PDF - 2.56 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:f7ad81c13275faf9f0e3dcf7f3211d3ecd58be59bd4a25d312699100765c6784f19a8cf07f251c72be523f87d1d6afbe409fb0f96a7b3b0d2d0fc4b0dfd8c4c7