That doesn't matter for the 30+ people in the school bus inhaling the exhaust. I'm glad I'm no longer in that situation. In my subjective experience, it felt a

That doesn't matter for the 30+ people in the school bus inhaling the exhaust. I'm glad I'm no longer in that situation. In my subjective experience, it felt a lot worse than standing near 15 cars. That's what I meant by "disproportionately more obnoxious than that of smaller vehicles"