Tuesday, March 11, 2014

More Bike Metrics

Some more bike metrics as we wish away the snow that is coming. Again the ACS designed to measure the characteristics of the population.  The proportion of workers commuting by bicycle is a characteristic.  So below is the same ACS data plotted over time shown as the prevalence of commuting by bicycle.

If you asked me which ACS estimates are most reliable, I have to go with the 5-year estimates with the smallest margins of error. See those estimates in orange which show a pretty steady progression. 




Data for the graph above is below. All data is for the city of Pittsburgh.
ACS Dataset Total Resident Workers                Bicycle Commuters     
2005 128,161 1,300 1.0%
2006 132,882 1,125 0.8%
2005-2007 130,490 1,288 1.0%
2007 128,408 1,382 1.1%
2006-2008 133,771 1,175 0.9%
2005-2009 144,054 1,609 1.1%
2008 138,832 1,069 0.8%
2007-2009 146,189 1,603 1.1%
2006-2010 141,987 1,692 1.2%
2009 147,314 1,995 1.4%
2008-2010 143,025 1,805 1.3%
2007-2011 141,493 1,850 1.3%
2010 138,929 2,267 1.6%
2009-2011 140,658 2,041 1.5%
2008-2012 142,577 1,893 1.3%
2011 135,738 1,894 1.4%
2010-2012 140,456 2,092 1.5%
2012 146,828 2,024 1.4%

2 Comments:

Blogger Vannevar said...

thank you! Finally, I'm a 1%-er!

Wednesday, March 12, 2014 12:04:00 AM  
Anonymous Anonymous said...

Sooooo ... it looks like what you're saying is that Peduto et. al.'s focus on biking doesn't compute.

Thursday, March 13, 2014 3:53:00 PM  

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