Our research team conducted an evaluation of the first major Open Streets events in San Diego (CicloSDias), which was held on Sunday August 11, 2013. The CicloSDias evaluation was funded by the California Endowment. The aims of the evaluation were to document attendance rates, gauge reach and marketing, and assess impacts on social cohesion, businesses, and physical activity. The evaluation consisted of counts of event attendees, intercept surveys of event attendees (some survey questions were presented on large posters), surveys of businesses along the route, and a city-wide survey before and after the event. A report of the evaluation results can be found on the publications page, under the heading 'CicloSDias'.
Engelberg, J.K., Carlson, J.A., Black, M.L., Ryan, S., and Sallis, J.F. (2014). Ciclovia participation in San Diego, CA: The first CicloSDias. Preventive Medicine, 69 (suppl.), S66-S73.