Pedestrian and Bicyclist Counting and Extrapolation Methodology
This exploratory study provided a methodological framework that could be applied in other communities to conduct pedestrian and bicycle counts and also extrapolate short pedestrian and counts to longer time periods. The methodology incorporated both manual and automated counts. Manual counts were conducted at a set of 50 intersections in Alameda County between April and June 2008. These counts were gathered according to an intersection pedestrian and bicycle counting methodology developed by Robert Schneider and other SafeTREC researchers that was later incorporated into National Bicycle and Pedestrian Documentation Project instructions. This methodology counted pedestrians crossing each leg of an intersection (including all pedestrians crossing within 50 feet of the crosswalk) and counted all bicyclists making through- and turning-movements at the intersection.
Continuous automated counts taken by EcoCounter infrared sensors at sidewalk locations in close proximity to a subset of 13 of the 50 intersections were then analyzed to account for variations in pedestrian volumes at different times of day and week, during different seasons, near different surrounding land uses, and under different weather conditions. Adjustment factors were used to extrapolate the two-hour pedestrian counts to weekly and yearly pedestrian volumes at each of the study intersections.
Location: Alameda County, California
Project Time Period: March 2008 to July 2009
Funders: California Department of Transportation (Caltrans) and Alameda County Transportation Commission (ACTC). Work was performed at the UC Berkeley Safe Transportation Research and Education Center.
Additional Information: http://trb.metapress.com/content/b32072815j4g6406/
Continuous automated counts taken by EcoCounter infrared sensors at sidewalk locations in close proximity to a subset of 13 of the 50 intersections were then analyzed to account for variations in pedestrian volumes at different times of day and week, during different seasons, near different surrounding land uses, and under different weather conditions. Adjustment factors were used to extrapolate the two-hour pedestrian counts to weekly and yearly pedestrian volumes at each of the study intersections.
Location: Alameda County, California
Project Time Period: March 2008 to July 2009
Funders: California Department of Transportation (Caltrans) and Alameda County Transportation Commission (ACTC). Work was performed at the UC Berkeley Safe Transportation Research and Education Center.
Additional Information: http://trb.metapress.com/content/b32072815j4g6406/