Foto Friday: Bike Traffic in San Diego County and City

This week’s edition of Foto Friday is more of a Graph Friday, which doesn’t have much of a fun ring to it so we’re sticking with the “Foto Friday” label.

The graphs below are a teaser for an article we will post next week on San Diego’s bike traffic (both in the City of San Diego and around the county). All graphs are courtesy of Dr. Sherry Ryan who is heading the bike count effort at San Diego State University. For more on the bike counters in the county, read this piece by Robert Leone.

First up is a graph showing Portland’s (a top U.S. bike city) bike traffic on a yearly basis over the four main bicycle bridges from 1992 to 2011.

Below is a graph depicting the bike traffic recorded this past March in Solana Beach

Below is a graph depicting the bike traffic on roads that have striped bike lanes. The data is from last month.

Below is a graph depicting the bike traffic on roads that have no bike facilities whatsoever. The data is from last month.

Considering our very deadly summer and the bike traffic counts noted above, the time is ripe to start allocating safe space on the roads to accommodate our growing bicycling population.

Edit: 11/1/2012. The last graph has been updated to be clearer about the type of road the data was gathered from. Class III routes have no bike infrastructure. Usually the road is populated by signage such as “bikes may use full lane” or “share the road”.