Emissions of demand responsive services as an alternative to conventional transit systems

The environmental performance of public transport plays a key role in improving air quality in urban areas. An important way of improving existing transit services is to use innovative propulsive systems; however, this needs considerable financial resources that are not always available. Here we assess how the organizational form of the transit system may impact the environment relying on a new methodology that permits comparisons in terms of distance traveled between a traditional fixed-route and a demand responsive transit service. We apply an emission model to find the least polluting transit system under a broad range of scenarios with different road networks, service quality levels and demand densities. Results indicate that demand responsive transit services minimize emissions for high quality service level and low demand density scenarios. Furthermore, the possibility of employing smaller vans with lower emission factors guarantees additional substantial benefits in terms of atmospheric pollution for demand responsive transit services, thereby giving them a competitive advantage in virtually every case.

• Record URL:
  http://www.sciencedirect.com/science/article/B6VH8-4N7RDJM-1/2/dcd0e36719aed295eca502f5cf9ccad5
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/13619209
• Supplemental Notes:
  • Abstract reprinted with permission from Elsevier
• Authors:
  • Diana, Marco
  • Quadrifoglio, Luca
  • Pronello, Cristina
• Publication Date: 2007-5

Language

• English

Media Info

• Media Type: Print
• Features: References; Tables;
• Pagination: pp 183-188
• Serial:
  • Transportation Research Part D: Transport and Environment
  • Volume: 12
  • Issue Number: 3
  • Publisher: Elsevier
  • ISSN: 1361-9209
  • Serial URL: http://www.sciencedirect.com/science/journal/13619209

Subject/Index Terms

• TRT Terms: Air pollution; Demand; Demand responsive transportation; Environmental impacts; Exhaust gases; Level of service; Methodology; Pollutants; Public transit
• Subject Areas: Environment; Public Transportation;

Filing Info

• Accession Number: 01050181
• Record Type: Publication
• Files: TRIS
• Created Date: May 22 2007 8:51AM