I witnessed a nice microcosm of this demonstrating how fast the shift occurs. Every day I cycle commute up the London A24/A3 (CS7) corridor. On the first da

I witnessed a nice microcosm of this demonstrating how fast the shift occurs. Every day I cycle commute up the London A24/A3 (CS7) corridor. On the first day of the first tube strikes early this year, the congestion was insane. I mean the worst traffic I've ever seen in my life. An ambulance was literally stuck in traffic and no one within earshot of the ambulance able to move their vehicle enough for it to get through. But then the second day of the strike traffic was a bit on the heavy side but mostly back to normal. I think a huge number of people realized that it was actually pointless to even attempt to go to work unless they were walking or biking. This effect even carried over to the second tube strike a month or two later.