nowfound

Dev tools · November 8, 2023

Modeling Berlin subway lines in graph database

Explore the Berlin subway system using Memgraph Lab, mapping subway stops as nodes and connections as edges in a graph database.

Modeling Berlin subway lines in graph database launched on November 8, 2023 with 29 votes, #1,219 of 4,333 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 2 years on.

In plain words

This is a technical demonstration that models Berlin's subway system as a graph database. It's designed for developers who want to learn how to represent complex network structures—like transportation systems—using graph database technology. The project showcases how to organize interconnected data where relationships between elements (stations and lines) are as important as the data itself, making it useful for understanding practical applications of graph databases in real-world infrastructure mapping.

written from the facts on this page · September 2026

From the sources

Just as the labyrinth of train tracks intricately connects the bustling stations across geographic areas, forming a network of pathways and possibilities, relationships in graph databases serve to connect nodes in a complex yet orderly web of data. Each station within this network can boast multiple connections, mirroring the multifaceted relationships that can exist between nodes in a graph database. Think of it this way: each connection between stations is unique, characterized by various properties such as the subway lines that traverse it, the distance it covers, and the number of passengers it ferries daily. These connections are not just lines on a map; they are vital arteries that…from memgraph.com

Does a similar job

all alternatives →

More dev tools this month

the category →
  • /dev/null▲481

    a social network for devs

    Dev tools · 2d ago · dev-null.sh

  • open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

    Dev tools · 27d ago · github.com

  • Contribute to reladraw/reladraw development by creating an account on GitHub.

    Dev tools · 25d ago · github.com

  • OpenBot▲362

    Grok Bot alternative: free, local, open-source, multiplayer

    Dev tools · 22d ago · openbot.run

  • Talanoa▲341

    Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

    Dev tools · 20d ago · talanoa.email

  • CoreSpeed▲332

    One MCP for everything your agents need: apps, memory, tools

    Dev tools · 28d ago · corespeed.io

Source: Show HN post ↗

Launched alongside, November 2023

the whole month →
  • Flowla▲1,119

    Digital sales rooms that wow buyers

    Growth · 2023 · flowla.com

  • Discover & book top creators to promote your product

    Growth · 2023 · passionfroot.me

  • Re:catch▲939

    If Google Form & Calendly had a baby

    Growth · 2023 · recatch.cc

  • Pitch 2.0▲886

    Create, share and analyze presentations faster than ever

    Work · 2023 · pitch.com

  • CRM built for modern teams & creators powered by AI

    AI · 2023 · leaddelta.com

  • Hi HN, I’m Kashish, one of the co-founders of SpeedVitals, a platform for testing & monitoring website performance with a major emphasis on Core Web Vitals. Until now, our platform has only focused on Synthetic/Lab testing, such as Lighthouse tests and TTFB tests. But now, we have developed a Real-User Monitoring platform that doubles up as a Web Analytics tool. One major feature we have that most RUM tools lack is Performance Audits. Just like Lighthouse audits work on Lab test data, our audits work across all the real-user visits and gives suggestions on what task to prioritize first.…

    Dev tools · 2023 · speedvitals.com