Tech Bros Invented Trains And It Broke Me

Source: Tech Bros Invented Trains And It Broke Me, Adam Something, 14:39, uploaded 2024-06-12, Watch Later position 864.

Adam Something begins with a joke about tech companies discovering trains. The object of the joke is Nevomo, a Polish deep-tech company whose M-Rail proposal promises magnetic propulsion on existing railway tracks. The proposal sounds like a faster version of ordinary rail, yet its speed, vehicle design, and operating assumptions run against the reasons railways work at all.

The M-Rail proposal

Nevomo presents M-Rail as a middle ground between conventional rail and the hyperloop. The system would add a magnetic track to existing railway infrastructure, use linear motors to push vehicles forward, and keep steel wheels as stabilisers. The company proposes a top speed of 550 km/h. Its plan includes retrofitting existing rolling stock so trains can move independently, alongside a dedicated pod for passengers and freight.

The proposal inherits the language of the hyperloop. Adam treats that lineage with suspicion because he sees a familiar pattern: a company takes an established transport system, removes the parts that make it useful, and keeps the promise of a dramatic top speed. He presents the video as a short lesson in railway operations because the proposal assumes that propulsion can solve problems that belong to track geometry, scheduling, capacity, and safety.

Speed classes and railway requirements

Adam divides rail into three broad speed ranges. Regular rail runs from very low speeds to roughly 160 km/h and includes rural rail buses, commuter trains, and intercity services. Higher-speed rail occupies roughly 160 to 250 km/h. Once trains approach 200 km/h, he says, tracks need full grade separation so that level crossings disappear. High-speed rail begins above 250 km/h and needs straight, smooth alignments, often with a concrete track bed. It also uses advanced signalling, and trains need sealed cabins because of pressure changes in tunnels.

The fastest high-speed lines currently operate around 350 km/h, according to the figures Adam gives in the video. Even that speed remains unusual because it demands a specialised system. Nevomo proposes to exceed it with small pods on conventional tracks. The proposal therefore places a high-speed vehicle inside infrastructure designed for several kinds of trains, speeds, and stopping patterns.

Capacity and the reason trains are coupled

The passenger pod removes the main advantage of a train. A railway vehicle can move many people because several vehicles run as one service. That arrangement lets operators increase capacity without multiplying drivers, departures, and control decisions at the same rate.

Adam uses a double-track commuter line north of Budapest as an example. He says the line carries 12.6 million passengers each year and still sits well below its theoretical maximum. If two Stadler KISS trainsets ran full every ten minutes throughout the day, he calculates a capacity of 576,000 passengers per day, or 210 million per year. Two coupled KISS units can carry around 2,000 passengers when full.

The pods shown in Nevomo’s proposal appear to carry about twenty people each. Matching the capacity of two KISS units would therefore require roughly 100 pods. Each pod would also need its own driver if the vehicles could not couple and operate as one train. Adam points out that railways already face driver shortages, even though one driver can supervise a train carrying up to 2,000 people. A system that turns one train into 100 independently operated vehicles multiplies the labour problem that coupling had solved.

Automation inside a live railway network

The video then turns to the system that keeps European railways from running trains into one another. ERTMS is being introduced across Europe to replace the many national signalling systems that trains encounter when they cross borders. Adam describes the older arrangement as a collection of country-specific boxes and sensors in the driver’s cabin. ERTMS aims to give trains one shared system for monitoring and control.

The complexity exists because trains are long, heavy, fast, and numerous. They move at different speeds towards different destinations on the same network. ERTMS can support automatic train operation, yet Adam says that a driver still needs to supervise the train. Driverless operation has not become viable at large scale, even with current technology. On his account, Nevomo’s idea of independent self-driving rail cars therefore fails at the point where it meets railway practice. Passenger pods would need hundreds of drivers to provide anything close to a regular service.

Mixed traffic and the price of a fast vehicle

A train’s top speed matters only when the network can let it use that speed. Adam compares German and French long-distance rail to show what happens when fast services share tracks with slower ones. He gives German long-distance trains a punctuality rate of 64%, measured by arrival within five minutes of schedule, and France 87%. He attributes the difference to the French use of dedicated high-speed lines and the German mixed system.

The example is deliberately ordinary. A commuter train takes too long to board. A freight train catches up behind it because freight accelerates slowly. That delay holds an intercity train for ten minutes. The intercity train has already missed the moment when it could have passed, so it waits another fifty minutes until the track clears. Adam says that repeating this kind of event across the network produces the familiar unreliability of German long-distance rail.

Nevomo’s pod would enter that same mixed environment. The passengers board, the signal turns green, and the driver starts the pod towards 550 km/h. A stop signal appears because an intercity train occupies the route ahead, so the pod waits fifteen minutes. Once it moves again, it can travel only as fast as the train in front of it until it catches up. Only some stations have sidings where slower trains can wait, and building enough sidings to protect every pod would alter the whole network.

Adam asks why a train carrying up to 1,000 people should absorb delays so that a pod carrying twenty can pass it. In practice, he expects the pod to run at roughly 140 to 160 km/h on many lines, perhaps 200 km/h in favourable cases. Dedicated high-speed tracks might let it reach around 320 km/h, yet those tracks would require hundreds of kilometres of magnetic third rail and several billion in investment. The result would be a small vehicle travelling at the speed of the existing system whilst offering fewer seats and less useful space than a high-speed train, where passengers can stand up, walk around, and use a bar or restaurant.

Adam’s broader criticism concerns the way the proposal treats speed as the whole service. Railways also depend on frequency, network coverage, convenience, price, capacity, ease of transfer, and punctuality. A train that runs once a day, carries two dozen people, and costs €600 can hold a world speed record without becoming a useful service.

Freight and the time scale of supply chains

Nevomo also proposes freight pods. Adam has discussed a similar idea in an earlier video about the hyperport, and he asks what problem a 550 km/h freight system would solve. A container may spend two weeks on a cargo ship and another week in port storage. Saving a day on the final land journey has little value when the transport chain already works on a longer time scale.

He gives the example of a factory that needs one container of components from China each day. The factory does not need the same container to travel from China to the factory overnight. Its supplier can send a sequence of containers at regular intervals, allowing one to arrive each day after the initial lead time. The factory can also order several containers in advance. Scheduling and inventory solve the timing problem without a cargo hyperloop.

The joke about Gmail and a wall calendar carries a practical point. Freight operators plan flows over time. A new vehicle can shorten one leg of a journey whilst leaving the production schedule, port handling, customs, and storage around it unchanged. The proposed speed therefore addresses the most visible part of the chain rather than the condition that determines when goods need to arrive.

Existing infrastructure has its own limits

The proposed magnetic third rail would place a large amount of copper close to the track. Adam says cable theft already affects buried cables, so an accessible copper rail would invite theft at scale. A missing panel in a 550 km/h route could derail a train. That risk remains before the vehicle encounters any ordinary railway feature.

Level crossings would force the vehicle to slow down, especially where barriers are absent. Urban sections would create another limit because the air displaced by a vehicle moving at 550 km/h could break windows in nearby buildings, damage fences and gardens, and affect trains passing on the adjacent track. The pod would therefore need to reduce speed whenever it reached the places where railway lines meet settled areas or other traffic.

Track construction imposes a further constraint. High-speed rail often uses concrete to prevent trains from throwing ballast stones into the surroundings. A 550 km/h vehicle on ordinary track would send large stones outward, so the route would need a fully concreted bed. Curves and switches would remain bound by their certified speeds. A curve designed for 100 or 120 km/h keeps that limit regardless of the propulsion system. High-speed switches can extend beyond a kilometre, yet Adam says even the fastest examples cannot handle 550 km/h.

The surroundings of the railway would need similar treatment. Trees, overhead wires, catenary equipment, and signalling systems were designed around lower speeds. The pressure from a pod moving at 550 km/h could topple trees onto the line, damage overhead wires, and make nearby equipment sway until its foundations failed. Making the system safe would require billions in heavy-duty retrofits for a vehicle carrying twenty people.

The familiar solution

Adam’s conclusion follows from the infrastructure rather than from the marketing. M-Rail’s pod has low capacity, its service would interfere with ordinary rail traffic, and existing tracks cannot support its proposed speed. A workable version would need wholly new, dedicated infrastructure. Once a route has been rebuilt for many vehicles running together at high speed, the proposal has recreated high-speed rail with an unnecessary detour through pods.

The video ends with a brief mention of Nevomo’s interest in using AI for train maintenance. Adam treats this as another attempt to attach a fashionable technology to railway problems that already have more direct explanations. His final judgement remains narrow: the proposal comes close to inventing an actual train, then abandons the features that make trains efficient.

Limits

The numerical comparisons, punctuality figures, capacity calculations, infrastructure costs, and safety claims above belong to Adam Something’s account in the video. The captions contain several automatic-transcription errors, and the video does not name the studies or operational data behind its figures. The note preserves the claims and the reasoning without treating every number as independently verified.

The description links to an ETCS video from Správa železnic as material used in the production. Its metadata identifies it as an 11-minute video uploaded on 2015-07-24, while its current description is empty and its captions were unavailable during acquisition. The link therefore records the source’s reference without adding claims from that video.

Further reading / references

• European Train Control System, Správa železnic, linked in the video’s description as material used.