1. Flusche Darren, Bicycling Means Business – The Economic Benefits of Bicycle Infrastructure. Advocacy Advance. New York City Department of Transportation. Measuring the Street: New Metrics for 21st Century Streets (New York, NY: NYC DOT, 2012).
Rachel Aldred, Benefits of Investing in Cycling (Manchester: British Cycling, 2014).
2. Geller Roger, “Four Types of Cyclists,” Portland Office of Transportation, 2015, accessed June 7, 2016, ttps://www.portlandoregon.gov/transportation/article/264746.