author=Jeremyp
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The serious point is that cancelling road projects is not necessarily going to improve the environment if the alternative is massive traffic jams.
Building more roads means more people use more cars.
https://www.wired.com/2014/06/wuwt-traffic-induced-demand/ There has been a survey that found out if bikes are given a separated path to cycle on, that also gives people more choice to drive (and use more cars etc).
IIRC, that was what happened in Stevenage. So unfortunately, even building cycle paths wouldn't help the environment.