2 ms·

> moving cars emit more sound and fumes than idling cars do Per car, per minute? Sure. Per car, per trip? Not clear, but probably not. Per block, per day? Als

> moving cars emit more sound and fumes than idling cars do Per car, per minute? Sure. Per car, per trip? Not clear, but probably not. Per block, per day? Also not clear, but probably not.

xdavidliu 2y ago
what does a trip mean for an idling car?
- sokoloff 2y ago
  A trip where a car drives some distance without idling in gridlock vs that same distance trip where the car spends significant time idling in gridlock in addition to time spent moving is the obvious answer.