kiranahiretomtom
commented
8 months ago The 'Sources for editing' section updated with the below information-
- Removed Maxar Premium Imagery from the list as it's not available anymore in OSM
- Added a description of proprietary sources to support editing
Project description
Goal
To improve the map quality in the Chile, we propose to make data improvements by sharing challenges that can help fix data errors, and add or edit certain kinds of geometry.
When appropriate, our team will also work on these challenges. If a challenge is more suitable to be solved without organised help, we will leave it for local users interested in completing the tasks. Challenges like this will be indicated as such in the overview below.
How to participate
Anyone is welcome to contribute to this project by participating in our MapRoulette challenges. Here is the extended documentation for using MR. Note that sometimes additional instructions are provided within the challenges. We also strongly encourage you to make use of the resources listed in the OSM wiki section The characteristics of the Map in Chile while you are editing.
Here is the current set of challenges.
Challenges
Quality check challenges
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- [Not connected highway](https://maproulette.org/browse/challenges/28334) Ways with tag highway=* must be connected to the rest of the road network to ensure its continuity, e.g. for route planning. When such a way is not connected to another way with tag highway=*, an error is logged. - [Tag area=yes on object without feature type]( https://maproulette.org/browse/challenges/28333) The area=yes tag is required for some closed ways when used to define a polygon. For closed ways with other tags, there is an assumption that the way defines an area. In some circumstances, a closed way may define both a closed polyline and an area. When tag area=yes is used, it is expected that one of the necessary accompanying tags is also found. - [Impossible angle in a highway](https://maproulette.org/browse/challenges/28323) In general, roads intended for vehicles should be built to maintain proper angles which ensure maneuvers and fluent traffic. Extreme, too sharp angles applied to a way may indicate errors in the road geometry. - [Invalid Turn Restriction](https://maproulette.org/browse/challenges/28341) This check identifies invalid turn restrictions. Invalid turn restrictions occur in a variety of ways, from invalid members to edge geometry issues to not being routable to wrong topology. Relations, ways and nodes in relations as well as turn restrictions are checked. A relation needs to have exactly one way with role 'from' and exactly one way with role 'to'. These ways should be linked together by at least one way with role 'via' OR with exactly one node with role 'via' (no more and no less). - [Invalid Mini-Roundabout](https://maproulette.org/browse/challenges/28336) Mini-roundabouts are a special kind of roundabout with the same rules as other roundabouts, but present as painted circles rather than physical circles. There might also be a low, fully traversable dome or island that vehicles can drive across. Road traffic flows in one direction around a point in the middle, and the traffic in the roundabout has right-of-way. A mini-roundabout is recorded using the tag highway=mini_roundabout. - [Polygon has self-intersection](https://maproulette.org/browse/challenges/28332) The necessary edits will be made to fix cases where the tag on a way indicates that the object is a polygon feature, but the way does not meet the definition of a closed way because it is self-intersecting, or ways in a relation with the same role form a self-intersecting polygon - [This multipolygon is a simple polygon](https://maproulette.org/browse/challenges/28331) Simple areas are mapped in OSM by creating a closed way and tagging it as an area object rather than a line. Relations of the type multipolygon are used to represent complex areas with holes inside or consisting of multiple disjoint areas. A multipolygon relation can have any number of ways in the role outer (the outline) and any number of ways in the role inner (the holes), and these must form valid rings to build a multipolygon. When a relation of the type multipolygon consists of only one member, which is a simple area, an error is logged. - [Spiky buildings](https://maproulette.org/browse/challenges/28340) Buildings with extremely sharp angles will be identified and corrected if needed. - [Polygon is not closed](https://maproulette.org/browse/challenges/28330) Features intended to be a polygon should be correctly tagged. When the tag indicates that the object should be a polygon, but the geometry is built out of a NON-closed way, an error is logged.Missing Highway Surface
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- [Add Surface to Highway](https://maproulette.org/browse/challenges/37505) The goal of this challenge is to identify and add missing surface tags on a road network. We queried OSM for ways with certain highway=* values where the surface tag was missing.Missing feature, tag challenges and Intersecting features
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- [Chile - Add Highways](https://maproulette.org/browse/challenges/38741) Data analysis done by TomTom suggests that there should be a road or track here in OSM, but it is missing. - [Chile - Fix Building and Highway Intersections](https://maproulette.org/browse/challenges/40616) TomTom has been diligently conducting spatial analysis, and during our study of highway and buildings features available in OSM, we discovered instances where buildings might be intersecting with a highway/road. The goal of this challenge is to identify and rectify any such situations, ensuring accurate map and data representation by utilizing reliable sources. It’s important to note that, as with any spatial analysis, there might be some false positives. If you come across a task that you believe is not a valid issue based on your knowledge, we kindly request you to mark it as “Not an issue.” - [Chile - Mapping Missing Buildings in Valparaiso](https://tasks.openstreetmap.us/projects/568) Accurate maps are vital for various applications concerning urban planning, emergency response, and navigation services. This collaborative mapping project, supported by TomTom, aims to improve the OpenStreetMap (OSM) data by adding buildings that are missing in the urban area of Valparaiso, Chile. - [Chile - Fix Intersecting Buildings](https://maproulette.org/browse/challenges/44534) Identify and fix, if needed, situations where a building intersects with another building at the same layer. - [Chile - Fix Incorrect Highway Junctions](https://maproulette.org/browse/challenges/44535) Identify and fix if needed, cases where highway junctions are incorrectly or imprecisely mapped. We improve overall OpenStreetMap (OSM) route network quality by solving real errors in the data.Missing Buildings
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* Missing Buildings: [Chile - Add buildings](https://maproulette.org/browse/challenges/39460) This challenges is primarily focused on missing buildings of all types (residential, commercial, industrial…etc.) to be mapped as highlighted. Our team compared TomTom and OSM data using spatial comparisons including intersections and overlaps indexes, we have detected some areas where buildings are missing in OSM; to increase confidence level, the team compared a sample area and conducted analysis to validate some missing buildings. The missing areas can be added by editing several buildings or individual ones; the choice will depend on reality checks and local knowledge. As you may know, you are required to use the most updated satellite and aerial imageries on the background while editing.Edits based on map feedback
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We make improvements to OSM based on user feedback submitted for the TomTom map after comparing and ensuring that it is also valid for OSM. Here is a list of the types of edits to be made, provided they do not conflict with others’ edits and a local source is available: - Highways - Adding highways - Realigning highways - Adding or adjusting bridges, tunnels, layers, or relations - Updating lanes - Updating traffic signs - Addresses - Adding or correcting addresses - Updating the position of address nodes, usually when an object has multiple addresses - Adding or correcting names of ways - POIs (Points of Interest) - Adding POIs - Correcting POI locations - Adding or correcting POI information - Resolving POI-land use discrepancies - Handling POI closures - Land use - Adding land use - Modifying existing land use extent - Buildings - Adding buildings - Updating building type - Adjusting building shape - Water - Adding or realigning rivers, streams, and lakes. These are incidental edits spread over time starting June 5th, 2023. We follow local guidelines and, if needed, consult with the community before making an update.Chile - (Evacuation Route Tags & Assembly Points)- SENAPRED Chilean National Disaster Prevention and Response Service
Our commitment to enhancing the humanitarian applications of OpenStreetMap is emphasize by our dedication to guiding individuals toward designated evacuation locations in the event of natural disasters. This critical information not only facilitates strategic planning for evacuation procedures but also ensures a more swift response during emergencies. The integration of such data into OpenStreetMap culminates in a swifter and more effective evacuation process, ultimately leading to more efficient assistance for affected communities and citizens.
By harnessing the potential of geospatial data and collaborative mapping efforts, our objective is toensure resilience and mitigate the impact of natural disasters on vulnerable populations. Through these initiatives, we actively contribute to the cultivation of a safer and more prepared global community.
This is announced on Social platform LinkedIn and in Telegram OSM Chile
Geographical scope
Data improvements will be made across the whole country.
Announcements
This project was announced in:
TomTom organised editing
We will follow the Organised Editing Guidelines for this project. TomTom will not make any edits until two weeks after the project announcement. Here is our Organised Editing page, including a list of our editors.
How to find TomTom's edits
All edits made by our team have the hashtag #tt, #tomtom or #tt_mapfeedback
Sources for editing
For some OSM map edits TomTom editors will use proprietary sources for support. These will typically be in situations where there is not sufficient evidence using the available sources in OSM editors themselves. The proprietary sources will be ground-level imagery and GPS traces, both collected by TomTom's mobile mapping vans. On occasion, we will also use sources collected from a field survey by one of TomTom's sourcing specialists who have visited the location and collected data to support the required map updates.
How to reach out
If you have remarks about a specific edit of ours, please drop a comment in the changeset, and we will do our best to respond thoughtfully. Or, you can also: