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3rd Pass Validation using JOSM

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Understand issues created by Tasking Manager task boundaries

Learn the ideal JOSM setup for 3rd pass validation

Learn how to conduct 3rd pass validation on HOT projects

Learning objectives

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3rd Pass Validation

Segmentation

Classification

How to download the AOI from the TM

Ensure that the expert mode in the Tasking Manager is activated
Activate expert by clicking on your username and going to “Settings”, scroll down and activate expert mode

Enter the project number in “Explore Projects”, in the project page scroll down and under the Contributions Timeline select “Download AOI”

Humanitarian OpenStreetmap Team

Use the continuous download plugin to download continuously and downloading along

OR

OR

Download the task grid and after selecting it use the ‘Download along’ tool from the file menu, make sure to add a distance in meters that will download all data within each task

How to download Data in JOSM

Humanitarian OpenStreetmap Team

Getting started

Ensure that you have added all the filters that are needed, for instance buildings=*,highway=*,waterway=*, landuse=* and natural=*, you can also put specific filters as you want

Since there is a lot of data filtering the different features while cleaning will ensure that JOSM does not crash or slow down too much

You need to make sure that the map paintstyles are also active. Check the ‘Inline Validation’ and ‘Missing Maps / Youth Mappers Validators Checks’ paint styles

Conduct very similar checks to those you would during validation, but ensure to look across the whole AOI

Humanitarian OpenStreetmap Team

Workplan

Between now and the end of the internship:

Have a go at doing 3rd pass on one project, please do not feel the need to complete the project, but try doing 3rd pass for one or two hours per week

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