@catsalad Lol, these are great.

There's a bunch of these sims out there now, look for the one that runs "busses" into a hanging weight...

@catsalad sub-optimal outcome at 350mph. That really did make me laugh.

It’s the post that impresses me most though

@catsalad My 11yo: "Another one rides the bus, boom boom." 🤣

#WeirdAl

@catsalad

physics…

@catsalad Good news, after examining the evidence Google are planning on limiting their AI driver-less buses to under 150 MPH

They are fully confident that this will be at least 12 times safer than the current buses driven by half asleep or distracted desperate to go to the toilet humans that are probably driving you around the city right now 

@catsalad

It's official I'm not human

I feel more empathy for the crash dummies than the humans in movies and TV

@catsalad Disregarding it being a simulation, whoever designed the pole deserves a Nobel Prize.

* 12.5-Mg New Routemaster
* We'll say it's at 1/3 capacity of its usual 80 (~25).
* Say these are all '5th Percentile Adult Female' NHTSA dummies at 49 kg.
* 13.725 Mg total
* ~89 m/s is the last speed shown where the pole fully stops the bus.
~1.22 million N s

It's hard to account for elasticity, but this pole stopped almost dead an object that weighs more than a cubic meter block of lead.

@catsalad

Frightening…

@catsalad
@pluralistic

You're going to want to check out the images of wrecked cars IRL on the World Bollard Association account:
@worldbollard

Group:
@worldbollardassociation

@catsalad Shit! What have I become! I am no longer able to enjoy a simple video of things crashing and getting shredded. All I can think of:

Executive Summary:

Our thorough examination of the barrier crash test has revealed certain vulnerabilities that, while not immediately apparent, could pose challenges in specific scenarios. It's essential to address these nuanced concerns to ensure the barrier's effectiveness in a wide range of circumstances.

1. Vulnerability: Elevated Ground Clearance Dilemma

Description:
The barrier exhibits limitations when facing vehicles with ground clearance exceeding 3 feet. While within standard specifications, this vulnerability could be exploited by unconventional vehicles, such as modified monster trucks or recreational off-road vehicles.

Severity:
Moderate

Remediation:
Consider implementing adjustable barrier heights or deploying supplementary barriers for exceptional ground clearance situations. Regularly assess and update barrier specifications to adapt to evolving vehicle designs.

2. Vulnerability: The Peripheral Bypass Challenge

Description:
In scenarios where sufficient space exists around the barrier, certain vehicles may find ways to circumvent the intended protective measures. This vulnerability is particularly relevant in open areas where the barrier may not completely block access.

Severity:
Low to Moderate

Remediation:
Enhance situational awareness by integrating sensor technologies to detect potential bypass attempts. Implement additional barriers strategically to mitigate the risk of vehicles maneuvering around the primary barrier.

Conclusion:

Our evaluation underscores the need for nuanced improvements to address these vulnerabilities and fortify the barrier against potential challenges. By implementing the recommended remediations, the barrier can offer enhanced protection in a broader spectrum of real-world scenarios. We remain dedicated to refining the security posture of the barrier for optimal effectiveness and reliability.