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Driving in 2021 Was 225 Percent Safer than in 1970

Blog Post | Motor Vehicles

Driving in 2021 Was 225 Percent Safer than in 1970

Deaths per traffic mile have decreased by 69.3 percent while miles per gallon increased by 95.4 percent.

Summary: Over the span of five decades, advancements in vehicle safety technology have contributed to substantial improvements in traffic safety. Meanwhile, significant enhancements in fuel efficiency have been achieved. If you define travel abundance as a combination of these two factors, then abundance has increased by 596 percent.


Between 1970 and 2021, the rate of traffic deaths for every 100 million miles driven decreased by 69.3 percent, from 4.88 to 1.50, according to the National Safety Council.

Vehicle miles driven increased 179.8 percent from 1.12 billion miles in 1970 to 3.13 billion in 2021. During this same period, the number of deaths decreased by 14 percent from 54,633 to 46,980.

This graph shows an increase in miles driven over time with the death rate per mile decreasing.

If traffic safety hadn’t improved since 1970, there would have been 152,842 traffic deaths in 2021 instead of 46,980. Adjusted for miles driven, for every traffic death in 2021, there were 3.25 in 1970 (4.88 ÷ 1.5 = 3.25).

The opposite of the death rate would be the life safety rate. If we index traffic safety at a value of 1 in 1970, the rate would be 3.25 in 2021. Measured from this perspective, 2021 was 225 percent safer than 1970. Vehicle safety has been increasing at a compound annual rate of 2.34 percent, doubling every 30 years.

Cars and drivers are both getting safer by getting smarter. Cars today have three-point seat belts, air bags, stability control, backup cameras, blind spot detection, anti-lock brakes, radial belted tires, headrests, tire pressure monitoring, automatic emergency braking, lane departure warning, adaptive headlights, adaptive cruise control, and anchors for child seats.

We also get much better mileage. The full-size Ford Galaxie took the number-one spot in sales for 1970. It got 13 to 16 miles per gallon. Today’s bestseller is the Honda CRV, which gets 28 to 34 miles per gallon. Gas mileage has increased by 114 percent while safety has improved by 225 percent. If you define travel abundance as a combination of these two factors, then abundance has increased by 596 percent.

This article was published at Gale Winds on 4/24/2024.

New York Times | Motor Vehicles

Elon Musk Shows off Tesla “Robotaxi” That Drives Itself

“Tesla on Thursday plans to unveil a product that Elon Musk, the company’s chief executive, has said will add trillions of dollars to its stock market value and fuel its growth.

The product is a prototype of a self-driving taxi that Mr. Musk has been promising for years. And it will be shown at an invitation-only evening event at the Warner Bros. studio near Los Angeles. Mr. Musk has promised that the cab, which he calls the Robotaxi, will be able to ferry passengers to any destination without human intervention, a feat that other companies have achieved in just a few places, like Phoenix and San Francisco.”

From New York Times.

The Atlantic | Energy Consumption

North Carolina’s Coming Run on Electric Cars

“When Hurricane Helene knocked out the power in Charlotte, North Carolina, on Friday, Dustin Baker, like many other people across the Southeast, turned to a backup power source. His just happened to be an electric pickup truck. Over the weekend, Baker ran extension cords from the back of his Ford F-150 Lightning, using the truck’s battery to keep his refrigerator and freezer running. It worked so well that Baker became an energy Good Samaritan. ‘I ran another extension cord to my neighbor so they could run two refrigerators they have,’ he told me.

Americans in hurricane territory have long kept diesel-powered generators as a way of life, but electric cars are a leap forward. An EV, at its most fundamental level, is just a big battery on wheels that can be used to power anything, not only the car itself. Some EVs pack enough juice to power a whole home for several days, or a few appliances for even longer. In the aftermath of Helene, as millions of Americans were left without power, many EV owners did just that. A vet clinic that had lost power used an electric F-150 to keep its medicines cold and continue seeing patients during the blackout. One Tesla Cybertruck owner used his car to power his home after his entire neighborhood lost power.”

From The Atlantic.

Bloomberg | Motor Vehicles

Uber Partners With WeRide to Offer Robotaxi Rides in UAE

“Uber Technologies Inc. is partnering with Chinese autonomous car company WeRide Inc. to expand its robotaxi offering to the United Arab Emirates.

Users of the Uber app in Abu Dhabi will be able to book a ride in a robotaxi from later this year, the companies said in a statement on Wednesday.

Uber has signed a string of deals with driverless car companies including Alphabet Inc.’s Waymo and Cruise LLC as part of an effort to position itself as a platform for commercializing autonomous vehicles.”

From Bloomberg.

Ars Technica | Infrastructure & Transportation

Driverless Semis Could Be Months Away

“On a sunny morning in December, an 18-wheeler will pull into a truck depot in Palmer, Texas, just south of Dallas. The driver will step out of the cab and help transfer his trailer to a second rig outfitted with powerful sensors.

This second truck will head south on Interstate 45 toward Houston. It will move cautiously, mostly cruising in the right lane at 65 mph despite the 75 mph speed limit…

Trucks travel the 200 miles between Dallas and Houston all the time. But there will be something special about the middle leg of this trip: There will be no one in the vehicle.

A startup called Aurora has spent seven years—and hundreds of millions of dollars—preparing for this driverless trip, which it hopes to complete before the end of the year.”

From Ars Technica.