OpenStreetMap

Project: Puerto Rico TIGER Roads Fixup

Posted by igeopr on 19 February 2014 in English (English)

Hey people just announcing details about a new project ...happy mapping!

Summary

This project is about an island-wide mapping effort for fixing and updating PR's roads to better reflect reality. Most of the island's roads are from a US Census TIGER data set which was primarily updated for the 2000 census and thus need to be fixed and updated. TIGER roads are known for having good connectivity but not the best positional accuracy. On top of that, there's a widespread amount of roads that in reality don't exist and incorrect usage of the "highway=track" tag. Learn more about the nature of TIGER roads in OSM and their issues: TIGER fixup.

Although it's a fair amount of manual work since the whole island is to be covered, the project's scope is not that ambitious since it only involves a partial review of roads (instead of a full review which requires ground knowledge). This means roads will be modified, removed, or added with just the help of aerial imagery and 2013 TIGER roads. It will still be up to other mappers with ground knowledge to do a full review and remove "tiger:reviewed=no" tags.

In the end, the project's result will be something awesome: a detailed, updated, high-quality, and public domain roads data set which is updatable by any mapper.

Guideline Doc

Please refer to this guideline if you want to learn about the project's Phases and what exactly is being done. Contributors are welcomed!

Tracking Progress

PR TIGER Fixup Progress Map

Progress Map

Comment from skorasaurus on 25 February 2014 at 17:55

Good work. A while back, I noticed that PR's roads were really bad (not aligned with imagery) from the TIGER import but was occupied with other tasks.

I look forward to see how it looks in the future!

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Comment from igeopr on 26 February 2014 at 12:42

Thanks! I use OSM for navigation so I really think this is needed.

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Comment from bdiscoe on 1 March 2014 at 18:00

How do we contribute to the project, other than by simply picking a place in PR and start editing? I did some tiger cleaning in the town of Arecibo just now, leaving the tiger:reviewed=no tag on the streets where I couldn't tell if it's correct or not; those should be visited by someone on the ground or local knowledge.

You also mention "USACE 2009-10 imagery", how do we use that imagery layer?

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Comment from igeopr on 2 March 2014 at 19:14

Hey bdiscoe. I've updated the references and data sources section above with links. In particular I have yet to find the 2009-10 USACE imagery available as a web service for using it in JOSM, but the USACE 2006-07 is. I feel the same way about the "tiger:reviewed=no" tags been removed by people with local or ground knowledge. I also added more information at the bottom of the diary entry for explaining how I've been working on all this. Thanks for contributing.

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Comment from ernestocd on 14 April 2014 at 19:13

You can load the 2010 Aerial Photography in JOSM by creating a TMS and pasting this link: http://services.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{zoom}/{y}/{x} This aerial photo was contributed by the Escuela Graduada de Planificación - Universidad de Puerto Rico Recinto de Río Piedras. Refer here for more information regarding this dataset: http://help.arcgis.com/en/communitymaps/pdf/WorldImageryMap_Contributors.pdf

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Comment from igeopr on 16 April 2014 at 02:37

I always wondered how it ended up in ArcGIS Online, kudos to La Escuela Graduada de Planificación. I tested it in JOSM and iD, the appearance and performance is great. I'll go check out the pdf to learn about usage. Thank you Ernesto!

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Comment from vramirez122000 on 5 September 2014 at 14:17

La Escuela Graduada de Planificación, con la ayuda de RIKS de Rotterdam, crearon un sistema de apoyo a la toma de decisiones llamado Xplorah para la Junta de Planificación. Como parte de las labores de crear dicho sistema, se pobló un raster de usos (residencial, industrial, etc) del terreno a 50 - 100 metros de resolucion. Para poblar el raster, la EGP subcontrató unas imagenes aereas nuevas para el año 2010. Todo esto fue pagado por la JP.

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