Zero emission street

The UK's first zero emission street is coming, the City of London Corporation has announced.
By spring 2020, the street will be restricted to zero emission vehicles, cyclists, and pedestrians.
So, why has this street in particular been chosen? According to a statement from the City Corporation, Beech Street has "high levels of air pollution as it is a busy, enclosed thoroughfare."
Environmental cleaning is very important for our world and we shold do something for living areas.