'Quiet havens' in London?

It seems - according to PlanningResource - that Boris Johnson is looking to create 'quiet areas' in London.

It's heartening to see that someone's taking urban soundscapes seriously.  The Positive Soundscapes project, hosted by the University of Salford, has been looking at the question for several years now; although I couldn't stay for long at the recent demo day they hosted in London, the researchers on this project are creating new tools for recreating, manipulating, and simulating the sounds of spaces, with easy-to-use interfaces that pinpoint sound sources on visualisations of existing or proposed places.

I took part in a soundwalk as part of the Positive Soundscapes research a while back, and was stunned to realise just how loud the modern city is made by just a few sources of noise (generally cars, trucks, and buses, along with construction machinery).  Forget carbon emissions - the biggest steps we can make to increase big-city quality of life has to be a move to all-electric vehicles, solving the local air quality and noise pollution at one fell swoop.