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 →- NSNYC Subway Simulator and Route Designer2025 · buildmytransit.nyc · ▲201
Hello HN! As a long term NYC resident, I have read countless articles on ideas tweaking subway services, but always found them hard to follow without visual aid. So over the long weekend I decided to build one. It has all the basic features: trains would spawn at their origin, stop at stations, and slow down if it gets too close to another. You can also design custom routes by piecing tracks together. Have fun, and let me know what you think!
Ubähnchen – Animated subway map of Berlin2022 · xn--ubhnchen-1za.vercel.app · ▲278Animated live map of the Berlin city trains
Memgraph – Transactional, in-memory, cypher-compatible graph database2020 · memgraph.com · ▲89Memgraph 1.0 is now production-ready, offering high-performance, in-memory graph database with Cypher support.

Simple-graph – a graph database in SQLite2020 · github.com · ▲237This is a simple graph database in SQLite, inspired by "SQLite as a document database" - dpapathanasiou/simple-graph
We Built a Documentation Recommendation System Using Graph Database2022 · memgraph.com · ▲59DRS is a web application that helps to navigate through documentation by giving you page recommendations based on your input URL.
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