David Zipper Profile picture
Jun 5, 2021 8 tweets 4 min read Read on X
A provocative question in this book by @STS_News: Why doesn't the USA regulate car safety like emissions?

"How would automakers transform their products if we mandated that they reduce the number of automotive fatalities in new cars by, say, 40% within 10 years?"

A thread 🧵:
For a century, automobile safety has largely focused on 1) driver education and 2) voluntary agreements by automakers to build safer cars.

Both those approaches are flawed.
Here's future Sen. Daniel P. Moynihan critiquing safety education in 1959:

It "shifts public attention from factors like auto design, which we can reasonably hope to control, to factors such as the temperament and behavior of 80M drivers, who [will ignore] a bunch of slogans."
Left to their own devices, carmakers shrug off safety. An academic observer in the 1960s:

"Unless there is an element of compulsion or the threat of it, manufacturers do not appear to have introduced [safety] features as standard EQ, which would...increase production costs."
But the federal gov can force automakers' hand.

Mandates for safety tech-- like airbags or ADAS-- can prevent carmakers from offering them only to those buying high-end vehicles.

After all, why should only the affluent be able to "afford" a safe car?
Notably, the feds have been far more successful spurring innovation reducing tailpipe emissions than improving safety.

The tight regs of the 1970 Clean Air Act were "technology forcing," pushing automakers to find new solutions.

Why can't we do that with auto safety?
Something has to change w/regard to American auto safety, because the status quo isn't working.

Last year over 38,600 people were killed on American roads and streets-- the most in 13 years. (And please don't tell me AVs will fix this if we simply wait.)
usnews.com/news/health-ne…
Vinsel's publisher claims this book is the first systematic history of US auto regulations (seems right).

My takeaway: Carmakers have repeatedly failed to address problems related to safety and pollution on their own.

Either regulators intervene, or the issues persist.

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More from @DavidZipper

Apr 28
Oversized SUVs and trucks worsen a slew of societal problems, including crash deaths, climate change, and tire pollution.

But rather than restrain car bloat, federal policy has actively encouraged it.

In @voxdotcom I explained how. 🧵

vox.com/future-perfect…
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First, a bit of context.

US cars have grown enormous. SUVs and trucks comprise 80%+ of new vehicles, up from ~25% in the 1970s.

SUVs and trucks steadily gain pounds and inches as models are refreshed.

jalopnik.com/trucks-and-suv…
Image
Car bloat -- the needless expansion of vehicles -- is a societal disaster (see the 🧵 below).

Problems include:
🔹 More road deaths
🔹 Increased air/tire pollution
🔹 Faster road wear
🔹 Pricier cars

Read 14 tweets
Apr 19
This @FT piece is the best examination of US crash deaths that I've seen in ages.

The US is so bad at this: "Even after adjusting for distance driven, US fatality rates remain 2x the rich-world average."

Here's a quick 🧵 to share insights (paywall).

ft.com/content/9c936d…
Image
Note that the US pedestrian safety crisis revolves around a few exceptionally dangerous states (looking at you, Texas and Florida).

Many relatively safe states (like those in New England) are on par with other rich countries. The Southeast and West are not. Image
The rise of SUVs and trucks has definitely made American streets more deadly, but that's only part of the story.

Car bloat is awful -- I'm not sure anyone has criticized it more than me -- but other factors are clearly at play. Image
Read 7 tweets
Mar 30
Fifty years ago, William Whyte studied how New Yorkers schmoozed, sat, and relaxed the small open spaces available to them. This 1980 treasure was the result.

Join me as I share a few timeless lessons. 🧵 Image
A key urbanist insight: “Supply creates demand.”

Comfortable urban spaces attract people happy to find a place to chat, eat, or read.

It's also the core idea behind induced demand, which explains why highway widening is futile (and why good bike lanes create more riders). Image
Whyte and his team meticulously gathered data about how people used plazas, sidewalks, and ledges, sharing metrics about everything from the optimal bench depth to the natural distribution of people sitting.

Here’s a table of people using the Seagram Building's plaza. Image
Read 13 tweets
Dec 18, 2023
Oversized SUVs and trucks kill people in crashes, catalyze climate change, and widen inequality. And the problem is getting worse.

A 🧵 about my deep dive on car bloat, in @Slate Image
@Slate “Car bloat” describes the shift in new car sales toward increasingly massive SUVs and trucks.

In 1977, SUVs and trucks comprised 23% of US car sales. Now they are over 80% -- and individual models keep adding weight and height. Image
@Slate The SUV trend began in the 1970s, when the American Motors Corp repositioned the military Jeep for the mass market.

AMC hyped features like 4-wheel drive that were largely useless in the suburbs, but its pitch worked. The Jeep was a hit, and other carmakers followed suit. Image
Read 16 tweets
Nov 19, 2023
Today is World Day of Remembrance for Road Traffic Victims. #WDoR2023

Notably, Americans are 2-5x more likely to die in a crash than those in peer nations. And the gap is widening.

Here are a few often overlooked ways to reduce the carnage. 🧵

nytimes.com/2022/11/27/ups…
Image
1) Invest in mass transit

Buses and trains are 30-66x safer per passenger mile than driving.

Places with strong transit systems have more transit trips and less driving. They therefore have fewer crash deaths.

slate.com/business/2022/…
Image
2) Build better sidewalks

US pedestrian deaths are at a 40-year high.

Complete sidewalk networks – with ample traffic islands, curb extensions, and crosswalks – can protect those on foot.

bloomberg.com/news/articles/…
Image
Read 9 tweets
Nov 18, 2023
Last week the National Transportation Safety Board recommended that speed-limiting technology be required on all new cars.

It’s an excellent idea. @USDOT should do it.

My latest in @FastCompany. 🧵 below

fastcompany.com/90985257/you-s…
Image
Consider this horrific crash last year in North Las Vegas.

A man on cocaine and PCP drove his Challenger at 103 mph through a red light, smashed into a van, and killed himself and eight people.

Speed-regulating tech could’ve prevented it.

cnn.com/2022/01/30/us/…
Image
Speeding is very, very dangerous.

It's involved in 12k+ crash deaths per year in the US, around 1/3 of all fatalities. Many involve truly reckless speeding, with drivers going 20+ mph over the limit.

. nhtsa.gov/press-releases…
Image
Read 11 tweets

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