Impact of compressed natural gas fueled buses on street pavements

Details

• Creators:
  Yang, Dingyi ; Harrison, Robert
• Corporate Contributors:
  University of Texas at Austin ; University of Texas at Austin. Center for Transportation Research ; Southwest Region University Transportation Center (U.S.)
• Subject/TRT Terms:
  • Buses
  • Alternate fuels
  • Pavement performance
  • Clean Air Act Amendments (CAAA)
  • Energy Policy Act (EPACT)
• Publication/ Report Number:
  SWUTC/95/721913-1
• DOI:
  https://doi.org/10.21949/1404661
• Resource Type:
  Tech Report
• Geographical Coverage:
  Texas
• TRIS Online Accession Number:
  00711586
• OCLC Number:
  33136424
• Corporate Publisher:
  Southwest Region University Transportation Center (U.S.)
• NTL Classification:
  NTL-PUBLIC TRANSPORTATION-Bus Transportation
• Abstract:
  Federal Clean Air Act Amendments of 1990 (CAAA) and the Energy Policy Act of ; 1992 (EPACT), together with other state regulations have encouraged or mandated ; transit systems to use alternative fuels to power bus fleets. Among such fuels, ; compressed natural gas (CNG) is attractive, although it must be stored in robust, ; heavy pressurized cylinders, capable of withstanding pressures up to 5,000 psi. ; Such systems are typically heavier than conventional diesel storage tanks. As a ; result, this raises gross vehicle weight, sometimes significantly, which then ; increases the consumption of the pavement over which CNG buses operate. ; Capital Metro, the Austin, Texas transit authority, is currently evaluating a ; number of CNG fueled buses. As part of the U.S. DOT Region Six University ; Transportation Centers Program (UTCP), a study was instigated into the scale of ; incremental pavement consumption associated with the operation of these buses. ; The study suggests that replacing current vehicles with CNG powered models ; utilizing aluminum storage tanks would raise average network equivalent single ; rehabilitation costs across the network of over four percent. Finally, it ; recommends that full cost study be undertaken with evaluation of the adoption of ; alternative bus fuels - which includes pavement and environmental impacts.
  More +
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/13326/dot_13326_DS1.pdf
• File Type:
  [PDF - 9.87 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:87c62a22d7946b5d8bf15c8deb9f4d8d0566d53e359f03456d42f199426c2702