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

Oct 2, 2024
The only way to prevent gigantic SUVs & pickups from killing pedestrians is to reduce car bloat.

Technology alone won’t do it – even if automakers claim otherwise.

Me, in @Slate 🧵

slate.com/business/2024/…
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Context: Oversized vehicles are deadly for everyone else on the street – and especially pedestrians.

They convey more force in a crash, take more time to brake, have huge blind spots, and are more likely to strike pedestrians’ head/torso.

slate.com/business/2023/…
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A pile of research links car bloat to the soaring number of US pedestrian deaths, which recently hit a 40-year high.

arstechnica.com/cars/2023/08/h…
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Read 8 tweets
Sep 26, 2024
Odds are good that your favorite European piazza/plaza/place used to be a parking lot.

Great story from @aitorehm with before/after pics:

Here’s Madrid’s Plaza Mayor [cont'd] politico.eu/article/europe…

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Piazza Colonna, Rome
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Praça do Comércio, Lisbon
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Read 4 tweets
Aug 1, 2024
"0-60 time" is a car metric that needs to die.

Even today’s slowest cars are quick enough for normal driving. Blazing-fast acceleration is pointless, and it shreds tires while endangering others on the street.

Me in @FastCompany 🧵

fastcompany.com/91165821/how-f…
Image
0-60 times emerged in the 1940s, the brainchild of a car dealer and auto journalist named Tom McCahill.

In the 1950s, a now-pitiful 10.5-sec 0-60 time on a sports car was something to boast about. Image
Engines were less powerful in the 1950s and 60s, and 0-60 times provided useful info.

It’s no fun merging into a highway from a dead stop in a car that needs ~30 seconds to hit 60 mph (like a 1960s Volkswagen Beetle). Image
Read 8 tweets
Jul 31, 2024
The biggest source of urban noise? Motor vehicles.

In @CityLab, I wrote about the quiet (and healthy) pleasures of car-free and car-light neighborhoods.

🧵

bloomberg.com/news/articles/…
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There’s an urbanist adage that cities aren’t loud; cars are loud. It’s really true.

~50% of urban noise is attributable to cars.

Everyone pays the price. Example : Researchers found that even mild traffic sounds make food taste worse. Image
More than annoying, car cacophony can damage health, causing high-blood pressure, heart disease, and mental illness.

In Denmark, 11% of all dementia cases were attributable to road noise

theguardian.com/society/2017/j…
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Read 9 tweets
Jul 29, 2024
US transportation agencies keep claiming that expanding highways will reduce climate change.

That's absurd.

In @voxdotcom I explained why. 🧵

vox.com/future-perfect…
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State DOTs (and the feds) regularly argue that adding highway lanes will reduce emissions.

Blue states, red states – they all do it. Example from Caltrans below.

Source: latimes.com/california/sto…
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A root problem: State DOTs use models that assume ongoing future growth in car traffic.

According to their models, only wider highways can keep cars from being mired in gridlock, spewing emissions as they inch forward. (Transit? Density? Not relevant, sorry.) Image
Read 4 tweets
Apr 28, 2024
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

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