The presentation here was made by John Pucher, Professor of Planning and Public Policy, in Vancouver.
It is well worth watching.
John is one of very few English speaking cycling experts who has really understood what is involved in achieving a mass cycling culture.
He and Ralph Buehler also wrote the invaluable article How cycling was made "Irresistable" in the Netherlands, Denmark & Germany.
I previously posted about how everyone cycles.
6 hours ago