alexa An Evaluation of the Effects of Drive-Through Configurations on Air Quality at Fast Food Restaurants
ISSN: 2165-784X

Journal of Civil & Environmental Engineering
Open Access

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Research Article

An Evaluation of the Effects of Drive-Through Configurations on Air Quality at Fast Food Restaurants

Keziah Hill, Fengxiang Qiao*, Mehdi Azimi and Lei Yu

Innovative Transportation Research Institute, Texas Southern University, USA

*Corresponding Author:
Fengxiang Qiao
Innovative Transportation Research Institute
Texas Southern University, USA
Tel: (713) 313-7009
E-mail: [email protected]

Received date: May 17, 2016; Accepted date: May 23, 2016; Published date: May 25, 2016

Citation: Hill K, Qiao F, Azimi M, Yu L (2016) An Evaluation of the Effects of Drive- Through Configurations on Air Quality at Fast Food Restaurants. J Civil Environ Eng 6:235. doi:10.4172/2165-784X.1000235

Copyright: © 2016 Hill K, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Drive-thru users at fast food restaurants stay in their vehicle and have the engine running instead of walking into the restaurant to place an order for food or beverage. Although the drive-thrus are convenient, and they save time for costumers, they may have negative impacts on the air quality. Idling vehicles waiting in lines at drive-thru facilities waste gas, harm air quality, and increase greenhouse gas emissions. This study examined the emission rates at three fast food restaurants in Houston, TX, with different drive-thru configurations. By driving on each drive-thru facility in two different times of the day (peak hours and non-peak hours), instantaneous speed and acceleration of vehicles were collected on a second-by-second basis using Global Positioning System (GPS) devices. Then, for each second-bysecond data, Vehicle Specific Power (VSP) value was calculated using instantaneous speed and acceleration. VSP and instantaneous speeds of the vehicles were used to obtain the operating mode distribution bins according to the standard provided by the Motor Vehicle Emission Simulator (MOVES). The vehicle emissions were calculated based on the operating mode binning approach. Emission factors analyzed in this study are Carbon Monoxide (CO), Carbon Dioxide (CO2), Oxides of Nitrogen (NOx), and Hydrocarbons (HC). The results of the study showed that the estimated emission is lower at drive-thru facilities with fewer stops and number of lanes.

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