Project ideas from Hacker News discussions.

Kidnapped by Deutsche Bahn

📝 Discussion Summary (Click to expand)

1. DB's Frequent Delays, Cancellations, and Disruptions

Users widely criticize DB for chronic unreliability, especially long-distance trains, with passengers often stranded or rerouted.
"DB doesn't care about trains being late. It's absolutely normal to have an hour delay in Germany." (f6v)
"In Germany in 2025 it got worse with only 55% of trains being on time (defined very generously as being less than 6 minutes late)." (jansan)
Regional trains fare better: "regional trains are usually on time, long-distance trains usually are not." (flohofwoe)

2. DB vs. UK Rail: Cheaper but Less Reliable

Debate pits DB's affordability against UK's high costs and delays, with mixed views on which is worse.
"UK trains are terrible... I bet that UK trains 'win' by being far more expensive than German trains." (rwmj)
"When comparing to the UK you have to also factor in how absurdly expensive it is. Eg a monthly ticket... is 292 EUR." (hexbin010)
UK perks noted: "Delay Repay means you get up to 100% of your ticket back if you're delayed." (rjh29)

3. Bureaucratic Inflexibility and Poor Communication

Complaints focus on rigid rules preventing stops, lack of English announcements, and unhelpful staff.
"Apparently we were not registered at Troisdorf station, so we are on the wrong tracks." (article, echoed by manarth)
"in-train announcements are only done in Dutch... I have to constantly listen." (flexagoon, similar for DB)
"DB has gained its reputation... taking someone away into another federal state without giving them the option to get out." (jeroenhd)


🚀 Project Ideas

EuroTrain Live Translator & Disruptor

Summary

  • Real-time app that translates train announcements, screens, and driver updates into English/other languages using AR/phone camera or audio; pulls live data from DB/UK APIs to predict disruptions, suggest alternatives, and auto-notify of splits/changes.
  • Core value: Empowers tourists/non-speakers to navigate chaos without relying on locals or confusing German-only info.

Details

Key Value
Target Audience Tourists, expats, international travelers in Germany/UK/EU
Core Feature Live audio/text translation + disruption rerouting with 40% buffer recommendations
Tech Stack React Native, Google ML Kit/Whisper for translation, DB Navigator API + RealtimeTrains
Difficulty Medium
Monetization Revenue-ready: Freemium ($4.99/mo premium alerts)

Notes

  • "I've had to find someone young... and say, 'I'm just going to follow you'" (huhkerrf); HN loves open data hacks like signalbox.io.
  • High utility for HN travelers; sparks discussions on EU rail APIs.

DelayClaim Auto-Compensator

Summary

  • Service that auto-scans tickets/itineraries via photo/QR, tracks actual vs. scheduled arrival using public APIs, files compensation claims for DB/UK operators (e.g., Delay Repay), handles appeals.
  • Core value: Hassle-free refunds (25-100%) without manual claims, turning frustrations into cashback.

Details

Key Value
Target Audience Frequent commuters/business travelers in UK/Germany
Core Feature AI ticket OCR + auto-claim submission to DB/TOC portals
Tech Stack Node.js, Tesseract OCR, Selenium for form-filling, ORR/DB APIs
Difficulty Medium
Monetization Revenue-ready: 20% of claimed amount

Notes

  • "Delay Repay means you get up to 100%... but some operators love to ignore" (a2fz, hexbin010); HN digs automation tools.
  • Practical for daily pains; viral via HN "I wish this existed" shares.

BufferPlan AI Route Optimizer

Summary

  • Web/mobile tool using ML on historical/live data (DB punctuality stats, UK ORR) to plan journeys with auto-buffers (e.g., +40% time), ranks options by reliability/cost, alerts to cancellations/splits.
  • Core value: Prevents "kicked out in Frankfurt... no more trains" by predicting and mitigating unreliability.

Details

Key Value
Target Audience Business travelers, long-distance users planning tight schedules
Core Feature ML delay forecasting + optimal route/buffer calculator
Tech Stack Python/FastAPI, scikit-learn for predictions, DB ZBIR/ORR data feeds
Difficulty High
Monetization Revenue-ready: Subscription ($9.99/mo pro forecasts)

Notes

  • "Plan with a ~40% of travel time buffer" (barrkel); "DB long-distance stats are pretty bad" (turbonaut).
  • HN commenters crave data-driven fixes; fosters infra debates.

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