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LA Metro has some of the slowest escalators on Earth

Hacker News Top ↗ · 5d ago Cached

The article investigates why LA Metro has slower escalators compared to other cities, using data from 139 cities to show that LA's speeds fall below global maximums.

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#public-transit

Transit rewards (Waymo pays you to take the train)

Hacker News Top ↗ · 2026-09-23 Cached

Waymo launches a transit rewards program in the San Francisco Bay Area, offering Waymo Cash to riders who connect Waymo trips with public transit using Visa cards to enhance multimodal transportation.

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#public-transit

Line Scan Photos from MUNI Heritage Weekend in San Francisco

Hacker News Top ↗ · 2026-09-20 Cached

The author attended the Muni Heritage Weekend in San Francisco and took line scan photos of various historical trams, providing background on each tram's history and design.

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#public-transit

ChatPlanner: A Large Language Model Framework for Personalized Public Transit Routing

arXiv cs.AI ↗ · 2026-06-16 Cached

ChatPlanner is a novel framework that uses fine-tuned LLMs with Retrieval-Augmented Generation (RAG) to interpret user preferences from natural language queries and integrate them into public transit routing algorithms, outperforming existing route planners.

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#public-transit

Smart Transportation Without Neurons -- Fair Metro Network Expansion with Tabular Reinforcement Learning

arXiv cs.LG ↗ · 2026-06-04 Cached

Researchers from the University of Amsterdam propose a tabular reinforcement learning approach to the Metro Network Expansion Problem, showing it achieves comparable performance to Deep RL while reducing training episodes by 18x and carbon emissions by 12x on average. The method also incorporates social equity criteria and is evaluated on real-world metro networks in Xi'an and Amsterdam.

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#public-transit

Building Transit Tracker

Lobsters Hottest ↗ · 2026-05-07 Cached

The article details the development and viral success of 'Transit Tracker,' an open-source DIY project for creating custom public transit arrival boards using ESPHome and LED matrices.

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