To establish a health-care, cost-based reason for bicycle facilities, several types of specific empirical
evidence must be gathered and broadly communicated to interested parties. Doing so is a tall order and
one that some claim to be insurmountable. Borrowing reasoning from Goetzel et al. (1998), researchers
must first demonstrate relationships between a given feature of the built environment (e.g., a bicycle
facility) and levels of cycling. Doing so would be similar to methodologies previously described to
measure the demand induced from various facilities. The active line of international research tackling this
question is likely to have reliable results that can inform this line of inquiry in relatively short order time
(i.e., a couple of years). Second, any amount of induced cycling that could be “teased” out from a facility
would then need to be translated into an average percentage of one’s weekly physical activity. For
example, the daily recommended level of physical activity is defined as 30 minutes of moderate physical
activity on five or more days per week (Pronk, Goodman et al. 1999; Blair, LaMonte et al. 2004). Cycling
five miles in 30 minutes or four miles in 15 minutes would meet these current public health guidelines for
physical activity for health (Pate, Pratt et al. 1995; U.S. Department of Health and Human Services 1999;
U.S. Department of Health and Human Services 2003).
i
To establish a health-care, cost-based reason for bicycle facilities, several types of specific empiricalevidence must be gathered and broadly communicated to interested parties. Doing so is a tall order andone that some claim to be insurmountable. Borrowing reasoning from Goetzel et al. (1998), researchersmust first demonstrate relationships between a given feature of the built environment (e.g., a bicyclefacility) and levels of cycling. Doing so would be similar to methodologies previously described tomeasure the demand induced from various facilities. The active line of international research tackling thisquestion is likely to have reliable results that can inform this line of inquiry in relatively short order time(i.e., a couple of years). Second, any amount of induced cycling that could be “teased” out from a facilitywould then need to be translated into an average percentage of one’s weekly physical activity. Forexample, the daily recommended level of physical activity is defined as 30 minutes of moderate physicalactivity on five or more days per week (Pronk, Goodman et al. 1999; Blair, LaMonte et al. 2004). Cyclingfive miles in 30 minutes or four miles in 15 minutes would meet these current public health guidelines forphysical activity for health (Pate, Pratt et al. 1995; U.S. Department of Health and Human Services 1999;U.S. Department of Health and Human Services 2003).i
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