The hottest Mapping Substack posts right now

And their main takeaways
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The 50 Lost Waterways of Southwark

Londonist: Time Machine • 399 implied HN points • 24 May 24
🎨 Art & Illustration History Events Mapping Design Photos
  1. Coloring historic maps can provide interesting insights into the past, revealing hidden details such as lost waterways.
  2. Peeling off the rivers and streams from an old map and pasting them onto a modern map can show the significant presence of water bodies in an area.
  3. Exploring old maps and overlaying them onto current maps can unveil historical features like rivers that have been lost over time.

This Map Might Change Where You Live

The New Urban Order • 119 implied HN points • 01 May 24
🕹 Technology Urban planning Mapping City life Sustainability Data Analysis
  1. Close is an interactive map that helps people find neighborhoods with amenities important to them, like public schools, increasing personalized walkability.
  2. Close uses free spatial datasets and user feedback to build a detailed destinations roster, showing a commitment to accuracy and continuous improvement.
  3. Close differs from tools like Walkscore by focusing on transparency, user customization, and the 'time to furthest important destination' approach to assess walkability in cities.

Mapping the London of Sherlock Holmes

Londonist: Time Machine • 419 implied HN points • 14 Feb 24
🏝 Travel Mapping
  1. Sherlock Holmes is deeply associated with London, with many places in the city linked to the fictional character.
  2. Holmes' claim to have exact knowledge of London raises questions about the role of the city in the stories.
  3. The Victorian city of London plays a significant role in the stories of Arthur Conan Doyle and Sherlock Holmes.

The Oldest Map Of London... Now In Colour

Londonist: Time Machine • 878 implied HN points • 29 Nov 23
🎨 Art & Illustration Mapping History
  1. The Copperplate map is the earliest-known map of London and showcases the streets, buildings, and people of 16th century London.
  2. The map is a wonder of Tudor engraving, offering a unique glimpse into the history and layout of London from that era.
  3. Accessing the map and detailed information about it may require a subscription to Londonist: Time Machine.
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The problem with isochrones: overcoming false precision in drive time maps

Expand Mapping with Mike Morrow • 3 HN points • 15 Dec 23
🔬 Science Mapping Accuracy Uncertainty Transport Data Visualization
  1. Drive time isochrones can give a false sense of precision because they are based on average traffic conditions, which can vary greatly.
  2. Improving isochrone accuracy can be done by increasing the number of trips, testing different conditions, and varied departure angles.
  3. To better communicate uncertainty, consider simplifying isochrone shapes and creating bands to show the range of possible outcomes.

The Fractal Map and Impossible Symmetry

Bedogged • 1 HN point • 26 Feb 23
🕹 Technology Mapping AI Machine Learning
  1. Achieving a 1:1 digital map of the earth is an impossible challenge due to physical storage constraints.
  2. Maintaining accuracy in maps requires constant updates based on real-world changes, especially as the scale of mapping expands.
  3. Creating a truly perfect map, reflecting human spatial knowledge, may only be achievable through the synthesis of all available spatial data using advanced AI technology.

Bulk isochrone creation

Expand Mapping with Mike Morrow • 0 implied HN points • 15 Dec 23
🕹 Technology Mapping Data Analysis
  1. The script was made to analyze fan travel impact between Capital One Arena and a proposed new arena in Potomac Yards.
  2. Isochrones were generated with Mapbox and inserted into Snowflake as geographic data types.
  3. The analysis included 2 addresses and 6 different drive times, but the script can handle any number of addresses.