Northwestern University economics professor Ian Savage examined American crash data over a decade, concluding that 7.3 people died in a car or truck for every billion passenger miles, 30 times the risk on urban rail and 66 times the risk aboard a bus. (If you’re wondering, motorcycles are by far the riskiest vehicles of all, while airplane travel is the safest.)
Even with these numbers, there are multiple reasons why many continue to prefer to drive:
Studies show that people typically feel safer in vehicles they control compared to those they cannot (i.e., a car compared to a bus or train). Worse, the rare transit crash is often a top media story, while daily car collisions barely register. “It’s baked into how we talk about crashes,” says Millar, of Washington State. “We had an Amtrak train crash here, three people died, and it was international news. That same week 10 people died on highways in this state—and it was the same the week before that, and the week before that.”
According to psychology’s “availability heuristic,” the intense attention paid to exceedingly rare plane or train crashes can lead us to unconsciously exaggerate their frequency, while the media’s shrug at car crashes causes us to discount the dangers of driving. One extreme example: A study found that the shift away from flying toward driving in the aftermath of 9/11 led to over 2,000 additional traffic deaths in the United States.
Lots of interesting factors to consider here. Do the perceived advantages of driving block out any consideration of the risk? Even if people had these numbers at their fingertips, would they consider risks or numbers?
I have argued before that the preference for driving is strong. If people in the United States have the resources and opportunity, they will pick driving over mass transit. Of course, the system is set up to make this choice for driving easier with an emphasis on roads and linking important cultural values and driving (such as individualism, taking road trips, suburban life, etc.).
This may be a prime case where making an argument from the numbers simply will not get far given the cultural narratives and social systems already in place. Perhaps the numbers could be paired with a compelling story or narrative? Even then, it could take a long time to convince Americans that because driving is more dangerous than other options they need to switch to other modes of transportation.