The erstwhile Scott Shaffer breaks down four ways of looking at vehicle miles travelled (VMT) data on his Tumblr — total, per capita, per vehicle, and per driver. Compare the results: For some reason he starts talking about Monica and Russ: VMT per capita in Minnesota has been steady or dropping since about 2004. Quick […]
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Time once again for another update on the big picture of driving in the United States: Vehicle Miles Travelled, per person. Long-time wonks who have been following this key stat might remember that it “peaked” fifteen years ago, and VMT (overall and per capita) had plateaued and was declining… … until gas prices went way […]
Here’s a chart that compares how much people drive to how wealthy they become, across a bunch of countries including Japan, Australia, and some of Europe’s larger nations. As you can see, the US is a bit higher than the rest: The chart comes from a study that compares rates of driving and preferences in London […]
This is a great chart from the New York Times that puts a dizzying spin on the usual vehicle miles traveled (VMT) and fatality graphs by plotting them against each other. Auto fatalities per capita is on the Y-axis, and VMT per capita is on the X (moving to the right = larger): (Note: 1979 = the […]
Here’s a chart showing an uptick in driving due to low prices, from this blog about sustainability… It just shows that price signals do make a big difference, even if total VMT has been below its peak for a decade.
Here’s the most interesting chart IMO from the recent NTSB report on the connection between speeding and fatal crashes in the US. The report is lengthy, and tends to focus on automobile crashes on highways, but there are some interesting takeaways. Here’s the chart itself [emphasis mine]: Here’s how the report describes the data behind […]
Via Pedal Fort Collins, here’s a simple chart showing the basic relationship between vehicle weight and the amount of “damage” or wear that is caused to the roadway. The relationship is pretty straightforward, but thanks to the magic of gasoline, people often forget to think about the weight disparities on our roads. Thus the chart, where […]
Today’s chart of the day shows total fatality rates per vehicle mile (not passenger trip or mile as I detailed here) for urban transit buses and passenger vehicles. It uses fatality data from the 2011 National Transit Database and NHTSA Safety reports. The main difference here is that it compares passenger vehicle travel done only on […]
Last week’s post on “The Critical Ten,” the difference between driving at 20 and 30 miles per hour, generated an intriguing conversation over at Streetsblog about what, exactly, science can tell us about perception and speed. I included this chart (given to me by folks at an engineering firm), but streets.mn writer Alex Cecchini tweeted […]
Here’s a chart that appears in a (less-than-groundbreaking) discussion about peak vehicle miles traveled, showing average US fuel economy since the 1970s. According to the page (Peak Oil News): The graph also shows that, with the second oil crisis, mileage restarted to increase, but by far not as fast as in the 1970s. There is […]