“What are the top 3 things Paris has done in the last 10 years to deliver a genuinely sustainable transport system?”

The other day the phone rang and I heard the voice of my long time friend and valued collaborator Professor John Whitelegg telling me: “on 8th November I am giving a presentation in London at a conference organised by SNCF.  It’s all about London and Paris and what the cities can learn from each other.  I will go further (as usual) and argue that both can make a lot more progress on things like bike use, traffic reduction, getting rid of air pollution, zero deaths  and injuries  etc if they get a lot bolder and start engaging with the vision thing.  I will say that Paris can learn from London on congestion charging but I want  something quite big that I can say in what ways London can learn from Paris.  What are the top 3 things  that Paris has done in the last 10 years to deliver a genuinely sustainable transport system?”