Sweden typically places multiple speed cameras in a series on a given road.

This new paper finds that their installation reduces crash deaths by an average of 38.6%.

doi.org/10.1016/j.aap.…

Reminder that 150+ of my articles on transportation, technology, and cities are available on my website: davidzipper.com/writing

Easy to search by topic (E-bikes, Safety, Autonomous Vehicles, etc)

Well, that's a personal first.

Just walked from the airport to a major downtown in 15 minutes.

A hidden challenge to improving road safety: Shoddy crash data, submitted by police.

New study: 'Accuracy and completeness of police-reported severe injuries are low.'

Can't fix what we can't measure.

doi.org/10.1016/j.jth.…

This new paper suggests using the term 'cycle traffic' to show that some people bike to get from A to B, while others drive or ride transit.

The phrase could counteract common assumptions that biking is merely recreation.

doi.org/10.1016/j.jcmr…

I wish media would stop running stories blaming pollution solely on the behavior of big corporations -- not those who use their products. It's misleading and lazy.

Example: The biggest source of microplastics in many rivers and oceans? Tires -- from cars, driven by people

Fellas, is it communist to use pricing to address negative externalities?

A hidden cruelty of car-centric places is the embarrassment and loneliness felt by those no longer able to drive. I've experienced this one personally.

It's yet another reason to build communities where people have other ways to get around.

nytimes.com/2024/04/19/wel…

Study of NYC's CitiBike asks: 'Does the usage of e-bikes differ from regular bikes?'

Short answer: Not much

Longer answer: Trips on both e-bikes & pedal bikes correlate with density, bike lanes, & proximity to subway. E-bikes more popular w/elevation.

tandfonline.com/doi/abs/10.108…

E-bike incentives really can change behavior:

In the Netherlands, 'two-third of [e-bike incentive recipients] actually use the e-bike as much as they intended at the start of the program.'

doi.org/10.1016/j.jcmr…

New study suggests that Level 2 driving assistance systems (like Tesla Autopilot) increase distracted driving:

'Drivers spent more time looking at the touchscreen when the automated system was operational relative to manual driving.'

doi.org/10.1016/j.aap.…

Last week the EU approved new rules to build bike parking:

🔹 New residential buildings with 3+ car parking spots must have 2 bike parking spots per unit

🔹 Other new buildings with 5+ car parking spots must allocate 15% of total parking space for bikes

ecf.com/news-and-event…