IdeaWell

Project ideas from Hacker News discussions.

Shinjuku Station in 3D

Original Article

Hacker News Discussion

📝 Discussion Summary (Click to expand)

1. Awe at Shinjuku’s massive scale

"This is beautiful. I went there 20 years ago and my mind was blown then how big it was but I really had no idea!" – mempko

2. Critiques of map completeness and geographic accuracy

"Also, that map seems incomplete by at least a 3rd.... The tunnels from there to the south entrance of Shinjuku station are missing as well." – socalgal2

3. Interest in 3‑D visualisation and gaming potential

"Can’t help but think of the 3D map of Midgar from FF7 when I look at this" – throwthrowuknow

🚀 Project Ideas

Generating project ideas…

Shinjuku 3D AR Navigation Assistant

Summary

  • An AR mobile app that overlays Shinjuku’s underground passages onto real‑world views via smartphone, highlighting steep escalators and elevators.
  • Solves the frustration of navigating complex multi‑level station layouts without clear signage.

Details

Key Value
Target Audience Urban commuters, travelers, tourists
Core Feature Real‑time 3D overlay showing escalator angles and route shortcuts
Tech Stack React Native, ARCore/ARKit, Three.js, Mapbox
Difficulty Medium
Monetization Revenue-ready: $4.99 one-time premium upgrade

Notes

  • Hackers praised the visual depth of the existing demo and request AR integration.
  • Potential to partner with local transit apps for broader adoption.

TransitGraph CLI

Summary

  • A command‑line tool that consumes public transit JSON feeds to generate a graph of station connections with annotated steep‑angle edges.
  • Turns raw schedule data into an easy‑to‑read diagram for enthusiasts and planners.

Details

Key Value
Target Audience Data scientists, transit analysts, hobbyist developers
Core Feature Auto‑detect and label escalator/elevator links in station graphs
Tech Stack Python, NetworkX, Graphviz, Click
Difficulty Low
Monetization Hobby

Notes

  • Directly addresses comments about missing tunnels and steep‑angle arrows.
  • Can be packaged as a reusable library for other city transit maps.

StationMap API

Summary

  • A SaaS API that ingests 3D station geometry (e.g., Shinjuku map) and returns labeled, searchable floor‑plan endpoints with escalator/elevator metadata.
  • Enables developers to embed interactive navigation into travel apps.

Details

Key Value
Target Audience Mobile app developers, game studios, AR/VR creators
Core Feature REST endpoint delivering structured elevator/escalator annotations and navigation routes
Tech Stack Node.js, GraphQL, PostgreSQL, Three.js server‑side renderer
Difficulty High
Monetization Revenue-ready: $0.01 per request with $15/mo tier for 10k calls

Notes

  • Matches demand for a “link your location in 3d space” feature discussed in comments.
  • Could spark discussion by offering a free tier for open‑source projects.

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