38C3: Lawsuits Are Temporary; Glory Is Forever

December 29, 2024 by Elliot Williams 35 Comments

One of the blockbuster talks at last year’s Chaos Communications Congress covered how a group of hackers discovered code that allegedly bricked public trains in Poland when they went into service at a competitor’s workshop. This year, the same group is back with tales of success, lawsuits, and appearances in the Polish Parliament. You’re not going to believe this, but it’s hilarious.

The short version of the story is that [Mr. Tick], [q3k], and [Redford] became minor stars in Poland, have caused criminal investigations to begin against the train company, and even made the front page of the New York Times. Newag, the train manufacturer in question has opened several lawsuits against them. The lawsuit alleges the team is infringing on a Newag copyright — by publishing the code that locked the trains, no less! If that’s not enough, Newag goes on to claim that the white hat hackers are defaming the company.

What we found fantastically refreshing was how the three take all of this in stride, as the ridiculous but incredibly inconvenient consequences of daring to tell the truth. Along the way they’ve used their platform to speak out for open-sourcing publicly funded code, and the right to repair — not just for consumers but also for large rail companies. They are truly fighting the good fight here, and it’s inspirational to see that they’re doing so with humor and dignity.

If you missed their initial, more technical, talk last year, go check it out. And if you ever find yourself in their shoes, don’t be afraid to do the right thing. Just get a good lawyer.

The London Underground Is Too Hot, But It’s Not An Easy Fix

December 4, 2024 by Lewin Day 90 Comments

The London Underground is an iconic piece of Victorian era engineering. What started in 1863 quickly became a core piece of infrastructure that would define the modern character of the British capital. It’s grown and changed immensely in the many years that have passed. Sadly, increasing patronage and more trains have created problems that the original designers never envisaged.

Deep in those London tunnels lies an engineering challenge. The Tube is literally cooking itself. Every day, millions of commuters descend into a network of tunnels that have been absorbing heat since the reign of Queen Victoria. Those clay-lined tubes have been soaking up excess thermal energy like a giant underground radiator, and now they’re giving it back with interest. The tunnels are simply too hot, and cooling them down is inordinately difficult.

The Perfect Storm of Thermal Chaos

The Tube’s heat problem isn’t just about one thing gone wrong – it’s about everything gone wrong at once. When Victorian engineers designed these tunnels, cooling wasn’t a major consideration. The tight, compact tunnels were built deep, nestled in the clay beneath London. In the early days, temperatures in the Underground were considered comfortably low.

“The Underground’s the only spot for comfort when the days are hot; it is cooler below.” – London Underground poster, 1926

Originally, the clay surrounding the tunnels sat at around 14°C, acting as a heat sink for the network. However, over the years, with more trains coming and going and more heat pouring in, the temperature has risen. It now typically sits anywhere from 19° to 26 °C. That’s just the earth around the tunnels, though. Air temperatures are worse—hitting as high as 47°C during a 2006 heatwave. The problem has been a continual bugbear of the beloved Tube, with concerns that future heatwaves could see temperatures rise ever higher. Continue reading “The London Underground Is Too Hot, But It’s Not An Easy Fix” →

A map of the US showing the potential changes to passenger rail service due to the Corridor ID Program

A New Era For US Passenger Rail?

July 31, 2024 by Navarre Bartz 115 Comments

Here in the United States, we’re lagging behind the rest of the world when it comes to shiny new passenger rail, despite being leaders in previous centuries. The Federal Railroad Administration (FRA) has just released a story map of how the US could close the gap (a little).

The Corridor Identification and Development (CID) Program is a way for FRA to provide both funding and technical assistance as corridor sponsors (mostly state Departments of Transportation) evaluate either new intercity service or expansion of existing services. While it isn’t a guarantee of anything, it is a step in the right direction to rebuilding passenger rail capacity in the US.

Some cities would be getting rail service back for the first time in decades, and perhaps even more exciting is that several of the routes being studied are for high speed rail “primarily or solely on new trackage.” As any railfan can tell you, vintage rails aren’t the best for trains going fast (sorry, Acela). With recent polling showing strong public support for the build out of high speed rail, it’s an exciting time for those who prefer to travel by rail.

We don’t think you’ll be able to ride a gyro monorail, nuclear-powered, or jet train on these proposed routes, but we do hope that Amtrak and FRA are looking to the state-of-the-art when it comes to those high speed alignments. While you’re eagerly awaiting new passenger service, might we recommend this field guide to what all those different freight cars going by are for here in North America?

A warehouse with concrete floors and at least four subway car rails running off into the distance. On the rails are dozens of R142 series subway cars with refurbished trucks in the foreground. People are visible on the floor moving a truck, and one man is in a bright yellow crane above everything watching what happens.

Overhauling Subway Cars Is A Big Job

July 30, 2024 by Navarre Bartz 6 Comments

Subway cars have a tough life. Moving people through a city efficiently underground every day and night takes a toll on the hardware. To keep things running efficiently, NYC rebuilds its cars every six years.

The enormous job of refurbing a subway car back to factory spec happens in one of two yards, either in Brooklyn or Manhattan. The cars are pulled off their 16,000 lb trucks, and treated to an overhaul of their “doors, windows, signage, seats, floor tiles and HVAC.” The trucks are inspected and wheels can be reground to true at the six year mark; they get all new wheels every 12.

Once everything is repaired, the shiny and like-new components are inspected and reassembled to go back out on the line. While it’s no small job, the overhaul shops can process over 1,000 cars in a year to keep things running smoothly. Before the overhaul program was introduced in the 1980s, NYC subway cars typically experienced failures every 16,000 miles, but between the scheduled maintenance and other advances that number has soared to an average failure rate every 140,000 miles.

For a somewhat less official use of underground spaces, how about this Parisian secret society? If you really want to bring the subway home, how about making an old subway seat into a chair? If you need something more light-hearted, you should really checkout this 90s subway safety video from LA.

Continue reading “Overhauling Subway Cars Is A Big Job” →

Hackaday Podcast Episode 250: Trains, RC Planes, And EEPROMS In Flames

December 29, 2023 by Elliot Williams 1 Comment

This week in the Podcast, Elliot Williams is off at Chaos Communication Congress, hearing tales of incredible reverse engineering that got locomotives back up and running, while Al Williams is thinking over what happened in 2023. There’s a lot of “how things work” in this show, from data buoys to sewing machines to the simulated aging of ICs.

Whether you’re into stacking bricks, stacking Pi Picos, or stacking your 3D prints to make better use of precious bed space, this episode is for you. Enjoy.

This is your last chance to download a new podcast this year. Take it!

Continue reading “Hackaday Podcast Episode 250: Trains, RC Planes, And EEPROMS In Flames” →

Polish Train Manufacturer Threatens Hackers Who Unbricked Their Trains

December 14, 2023 by Jenny List 63 Comments

A week ago we covered the story of a Polish train manufacturer who was caught using software to brick their products after they had been repaired by in independent railway workshop. Now 404 Media has a follow-up story with more information, including the news that the hackers responsible for the discovery are now being threatened by the manufacturer.

The more we learn about this story the more interesting it becomes, as the Newag trains in question began failing after service as far back as 2021. In desperation after services were affected by the number of non-functional units, an employee searched online for Polish hackers and found a group called Dragon Sector. The group was able to find the issue, and are now being threatened with legal action by the manufacturer, who are citing possible safety issues.

It’s clear from where we are standing that Newag have been caught red-handed in some extremely dubious practices, and seem to have little sense of how their actions might not be the best in terms of protecting their reputation. We are guessing that the European regulators will become very interested in this case, and that meanwhile the order books of a company which puts DRM in its trains will start to look very empty indeed. You can catch our original coverage as the story broke, here.

Thanks [JohnU] for the tip.

The Deere Disease Spreads To Trains

December 6, 2023 by Jenny List 37 Comments

If the right-to-repair movement has a famous story, it’s the familiar green and yellow John Deere tractor. Farmers and mechanics have done their own repairs as long as there have been tractors, but more recent Deeres have been locked down such that only Deere-authorised agents can fix them. It’s a trend that has hurt the value of a second-had Deere, but despite that it appears to be spreading within the machinery world. Now there’s a parallel on Polish railways, as Polish-made Newag electric passenger trains have been found to give errors when serviced by non-Newag workshops.

At the heart of the problem are the PLCs which control all aspects of a modern rail traction system, which thanks to a trio of Poland and Germany based researchers have been found to play a range of nasty tricks. They’ll return bogus error codes after a set date which would presumably be reset by the official service, if the train has been laid up for a while, or even if they are detected via GPS to have visited a third-party workshop. Their work will be the subject of a talk at 37C3 which should be worth watching out for.

It will be especially interesting to juxtapose the reaction to this revelation with cases such as the Deere tractors, because of course Poland is part of the European Union. We’re not specialist EU competition lawyers, but we know enough to know that the EU takes a dim view of these types of practices and has been strong on the right to repair. Who knows, Polish trains may contribute further to the rights of all Europeans.