@book{865,
	author = {Vandervalk-Ostrander, Anita and American Association of State Highway and Transportation Officials},
	title = {AASHTO guidelines for traffic data programs /},
	publisher = {American Association of State Highway and Transportation Officials,},
	year = {2009},
	address = {Washington, D.C. :},
	edition = {[2nd ed.]},
	url = {https://app.knovel.com/hotlink/toc/id:kpAASHTOG6/aashto-guidelines-traffic/aashto-guidelines-traffic}
}