People driving cars and trucks from one place to another is not only a big contributor to New Jersey’s carbon footprint, but also leads to many hours wasted behind the wheel and many dollars spent to build and maintain the state’s road network. In New Jersey, the average licensed driver drives about 33 miles a day. While transportation planners and the general public are aware that daily life involves a lot of driving, the reasons for all this vehicular travel are less widely understood. A better way of measuring vehicle-miles traveled (VMT) might provide some insight into the problem—and what to do about it.