Estimating vehicle miles traveled (VMT) in urban areas using regression kriging |
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| Authors: | Seheon Kim Dongjoo Park Tae‐Young Heo Hyunseung Kim Dahee Hong |
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| Institution: | 1. Department of Transportation Engineering, University of Seoul, Dongdaemun‐gu, Seoul, South Korea;2. Department of Information and Statistics, Chungbuk National University, Heungdeok‐gu, Cheongju, South Korea;3. Center for Transport Database, The Korea Transport Institute, Ilsanseo–gu, Goyang, South Korea |
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| Abstract: | The recent increase in demand for performance‐driven and outcome‐based transportation planning makes accurate and reliable performance measures essential. Vehicle miles traveled (VMT), the total miles traveled by all vehicles on roadways, has been utilized widely as a proxy for traffic impact assessment, vehicle emissions, gasoline consumption, and crashes. Accordingly, a number of studies estimate VMT using diverse data sources. This study estimates VMT in the urban area of Bucheon, South Korea, by predicting the annual average daily traffic for unmeasured locations using spatial interpolation techniques (i.e., regression kriging and linear regression). The predictive performance of this method is compared with that of the existing Highway Performance Monitoring System (HPMS) method. The results show that regression kriging could provide more accurate VMT estimates than the HPMS method and linear regression, especially with a small sample size. Copyright © 2016 John Wiley & Sons, Ltd. |
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| Keywords: | vehicle miles traveled (VMT) Highway Performance Monitoring System (HPMS) regression kriging spatial interpolation |
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