@article {454,
	title = {Quantifying air quality benefits resulting from few autonomous vehicles stabilizing traffic},
	journal = {Transportation Research Part D: Transport and Environment},
	volume = {67},
	year = {2019},
	month = {02/2019},
	chapter = {351},
	abstract = {<p>It is anticipated that in the near future, the penetration rate of vehicles with some autonomous\&nbsp;capabilities (e.g., adaptive cruise control, lane following, full automation, etc.) will increase on\&nbsp;roadways. This work investigates the potential reduction of vehicular emissions caused by the\&nbsp;whole traffic stream, when a small number of autonomous vehicles (e.g., 5\% of the vehicle\&nbsp;fleet)\&nbsp;are designed to stabilize the traffic\&nbsp;flow and dampen stop-and-go waves. To demonstrate this,\&nbsp;vehicle velocity and acceleration data are collected from a series of field experiments that use a\&nbsp;single autonomous-capable vehicle to dampen traffic waves on a circular ring road with 20{\textendash}21\&nbsp;human-piloted vehicles. From the experimental data, vehicle emissions (hydrocarbons, carbon\&nbsp;monoxide, carbon dioxide, and nitrogen oxides) are estimated using the MOVES emissions\&nbsp;model. This work\&nbsp;finds that vehicle emissions of the entire\&nbsp;fleet may be reduced by between 15\%\&nbsp;(for carbon dioxide) and 73\% (for nitrogen oxides) when stop-and-go waves are reduced or\&nbsp;eliminated by the dampening action of the autonomous vehicle in the flow of human drivers. This\&nbsp;is possible if a small fraction (\~{}5\%) of vehicles are autonomous and designed to actively dampen\&nbsp;traffic waves. However, these reductions in emissions apply to driving conditions under which\&nbsp;stop-and-go waves are present. Less significant reductions in emissions may be realized from a deployment of AVs in a broader range of traffic conditions.</p>
},
	doi = {10.1016/j.trd.2018.12.008},
	url = {https://doi.org/10.1016/j.trd.2018.12.008},
	author = {Yuche Chen and Miles Churchill and Fangyu Wu and Maria Laura Dell Monache and Benedetto Piccoli and Benjamin Seibold and Jonathan Sprinkle and Daniel B. Work}
}
