Complaints about Facebook’s Automated Edits in Thailand

Facebook’s AI tool has added some 480,000 kilometres of previously unmapped roads in Thailand to OpenStreetMap, BBC News reports, but some local mappers have been complaining about the quality of those edits, and the overwriting of existing edits by Facebook’s editors: see OSM Forum threads here and here. In particular, see OSM contributor Russ McD’s rant on the Thai Visa Forum:

What Facebook fail to state is the inaccurate manner in which their AI mapping worked. The OSM community in Thailand had for years, been working slowly on mapping the Country, with the aim of producing a free to use and accurate map for any user. Information was added backed by a strong local knowledge, which resulted in a usable GPS navigation system based on OSM data. Main road were main roads, and jungle tracks were tracks.

Then along came Facebook with its unlimited resources and steamrollered a project in Thailand with scant regard for contributors … sure they paid lip service to us, with offers of collaboration, and contact emails … but in reality, all our comments went unanswered, or simply ignored.

Sure, their imagery identified roads we had not plotted, but along with that came the irrigation ditches, the tracks though rice paddies, driveways to private houses, and in once case, an airport runway! All went on the map as “residential roads”, leaving any GPS system free to route the user on a physical challenge to make it to their destination.

Local users commented, but the geeky humans who were checking the AI, living thousands of miles away, having never visited Thailand, just ignored our comments. They would soon move onto bigger and better things, while sticking this “success” down on their resume.

Sounds like another case of local mapping vs. armchair mapping and automated edits, where local mappers are swamped and discouraged by edits from elsewhere. [Florian Ledermann]

Previously: OpenStreetMap at the Crossroads.

James Clark’s Revised Map of Current and Proposed Railways in Southeast Asia

James Clark

James Clark has updated his map of current and proposed railways in southeast Asia (see previous entry). The new version clearly delineates between current and proposed lines. “The black lines on the map represent railways that are currently operating, while the red lines are proposed lines. As with the subway map, proposed can mean anything from lines currently under construction, in feasibility study stage, or an on-the-record election promise from a pork-barrelling politician.”

A Map of Southeast Asia’s Future Rail Lines

future-se-asia
Map by James Clark

Travel blogger James Clark has created a subway-style map of southeast Asia that shows every rail line that currently exists, is under construction, or proposed.

What would Southeast Asia look like if it had a fully functioning railway network? I have thought about this many times, usually while on a bus ride from hell (Huay Xai to Luang Prabang springs to mind). […]

Over the years I’ve bookmarked news articles reporting railway lines that are under construction, or have been proposed to be built. Compiling all this data I have created a map of what Southeast Asia could look like if all of those lines were built, combined with current railways.

James warns that he’s included every proposed line, “no matter how ridiculous,” so bear that in mind. It’s also available as a poster. [CityLab]

This Map Needs a Magnifying Glass

The Bangkok Post interviews artist Karoon Keamviriyasatean (aka Zillv)“To record the beauty of Rattanakosin Island, known simply as the ‘Old Town’, freelance artist Karoon Jeamviriyasatean has drawn a map. But it isn’t any normal map. It is a stunning and intricately detailed architectural birds-eye-view cityscape of Rattanakosin Island. Every block, shophouse, fort, temple and soi is depicted, and the only way to see it in full detail is through a magnifying glass.” The map is available for sale here. [WMS]