osmlab / appledata

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Data Improvements in Cyprus #101

Open awisemanapple opened 6 years ago

awisemanapple commented 6 years ago

Task Description

This task outlines work to improve map data in Cyprus. We plan to focus on improvements to the road network and other feature types such as buildings, addresses, water, and land use and other related polygonal features. We have messaged the local community and get feedback and suggestions for this project.

Improvements that will be addressed include the following:

Mapping Guidelines

The team will use the imagery and data sources specified below as needed for mapping in the country.

When in doubt, the team will use the existing tags and data which are used locally. The history in JOSM (ctrl-H) identifies what previous mappers added and their notes and/or explanations regarding changes made. This history can also show if a previous mapper has visited that area or has expert knowledge or sources.

Our team uses the hashtag #adt (for Apple Data Team) for our edits.

Highways

The team will follow OSM and local policy, along with any other guidelines as appropriate.

Water

In some cases, the coastline has been mapped using old or low-resolution imagery, meaning that some features are missing or may be inaccurately mapped. We plan to use a variety of imagery sources to help map the coast geometry more accurately.

For inland water, some water features such as rivers or lakes are mapped as lines when they should also be polygons, and others are missing altogether. There are also occasionally issues with relations on water features. We also plan to correct alignment of inland water, rivers, lakes, etc., to improve geometry and adjust coastlines where inland water and coastline meet. All edits will be made using appropriate sources per those listed below.

The team will follow OSM coastline guidelines, waterways policy such as water and natural=water and local policy along with any other policy as appropriate.

Some coastlines are connected to lower level subnational administrative boundaries. In that case we will adjust the boundary with the coastline. These are not country boundaries, but things like place, district and county.

Where we see them, we will remove the source=PGS tag, which was from an earlier coastline import that needs to be cleaned up. We received a message on the India coastlines project requesting this, and it is commonly done in other coastline improvement edits.

Area of Focus

Throughout the country.

Users jmania and bartu power said there is a lot of new construction in the northern areas and ersenal said there are some missing roads and classification issues as well. jmania also confirmed there are some coastline issues.

Tools

The team will use JOSM for completing the task. JOSM has validation warnings for road networks and other possible issues that are important to prevent improper changes.

Sources

The team will apply image offsets as needed.

Changeset Comments

The team will provide changeset comments that are in compliance with OSM changeset guidelines.

Error Detection

The team will check for errors visually and using JOSM validation warnings prior to committing the changeset.

In addition, the team will review its work in accordance with validation guidelines such as the OSM Wiki and LearnOSM validation guidelines

Contributors

MapRoulette

We have also posted MapRoulette challenges related to the road network: https://maproulette.org/browse/projects/39167

Things you can do

If you'd like to help, here are a few ideas:

For more information

Our community lead is Teddy Ahlvin and our editing leads are Jon Westlake and Erica Olson. To get in touch with Teddy, you can email or contact him via OSM. All of our leads can be reached via email.

OSM Wiki