> London buses spend a lot of time stopped at bus stops. A lot of cars spend a lot of time stopped at traffic lights and often stopped/crawling in traffic, and

> London buses spend a lot of time stopped at bus stops. A lot of cars spend a lot of time stopped at traffic lights and often stopped/crawling in traffic, and it's probably why start-stop mechanisms can really improve fuel efficiency. Engineering Explained with "Americans Have No Idea How Much Fuel Idling Uses": * https://www.youtube.com/watch?v=dFImHhNwbJo https://www.youtube.com/watch?v=dFImHhNwbJo