Fuels for urban transit buses: a cost-effectiveness analysis.

  title={Fuels for urban transit buses: a cost-effectiveness analysis.},
  author={Joshua Cohen and James K. Hammitt and J Levy},
  journal={Environmental science & technology},
  volume={37 8},
Public transit agencies have begun to adopt alternative propulsion technologies to reduce urban transit bus emissions associated with conventional diesel (CD) engines. Among the most popular alternatives are emission controlled diesel buses (ECD), defined here to be buses with continuously regenerating diesel particle filters burning low-sulfur diesel fuel, and buses burning compressed natural gas (CNG). This study uses a series of simplifying assumptions to arrive at first-order estimates for… CONTINUE READING

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