Americans love public transportation—so long as they aren’t the ones using it. While most support investment in buses, trolleys, and trains, cars remain by far the most popular way to travel. If the expense of driving reflected how much cars really cost—for the economy, the environment, and public health—would more people actually get on board?

We want to hear what you think about this article. Submit a letter to the editor or write to letters@theatlantic.com.