This seems logical but it’s actually not true. Here’s an articleOttawa keeps expanding it's bike lanes, which creates more traffic problems/congestion, so that the mostly mostly upper-middle class office drones can get to work in spandex faster. Nothing says "I'm saving the environment" quite like making cars sit idling at traffic lights.
Numerous studies over several decades have shown that expanding roads draws more traffic and that replacing roads with bike lanes actually decreases traffic. It’s counter-intuitive.