References [1] Advanced Parking Management Systems: A Cross-cutting Study – Taking the Stress Out of Parking. January 2007: US Department of Transportation. Available: <http://www.its.dot.gov/jpodocs/repts_te/14318_files/14318.pdf> [Accessed: March 12, 2009] [2] Shoppers complain it's no fun at the mall. December 9, 2008: Reuters. Available: <http://www.reuters.com/article/newsOne/idUSTRE4B83C720081209> [Accessed: April 4, 2009] [3] Parking Lots & Garages in the US -- Industry Report. March 20, 2009: IBISWorld Market Research. Available: <http://www.ibisworld.com/industry/default.aspx?indid=1739> [Accessed: April 7, 2009] [4] Vehicle Detector Technologies for Traffic Management Applications. Lawrence A. Klein. Colorado Department of Transportation. Available: < http://www.cotrip.org/its/ITS Guidelines Web New Format 2-05/Web Solutions Packages/ITS Solution Packages - Web Copy/Vehicle Detectors/Klein Part 1 Vehicle Detector Technologies.doc> [Accessed: March 17, 2009] [5] Traffic Count Methods. US Federal Highway Administration. Available: <http://www.fhwa.dot.gov/environment/airtoxicmsat/4.htm> [Accessed: March 18, 2009]