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Green Car Congress
Dec 12, 2018, 9:05 am267 ptsby Michael Sivak. This analysis was conducted to examine changes in traffic volume on rural and urban roads in the United States from 1991 through 2016. The raw data for the analysis were lane length (which takes into account all roadway lanes of travel) and distance traveled, both from the Department of…
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Leaf through planet Earths environmental headlines in one convenient place. Read, share and discover the latest on ecology, science and green living from the web's most popular sites.