{"action":"created","issue":{"url":"https://api.github.com/repos/gravitystorm/openstreetmap-carto/issues/1736","labels_url":"https://api.github.com/repos/gravitystorm/openstreetmap-carto/issues/1736/labels{/name}","comments_url":"https://api.github.com/repos/gravitystorm/openstreetmap-carto/issues/1736/comments","events_url":"https://api.github.com/repos/gravitystorm/openstreetmap-carto/issues/1736/events","html_url":"https://github.com/gravitystorm/openstreetmap-carto/pull/1736","id":100332322,"number":1736,"title":"New road style - rework road colours, road widths and display of railway=rail","user":{"login":"matkoniecz","id":899988,"avatar_url":"https://avatars.githubusercontent.com/u/899988?v=3","gravatar_id":"","url":"https://api.github.com/users/matkoniecz","html_url":"https://github.com/matkoniecz","followers_url":"https://api.github.com/users/matkoniecz/followers","following_url":"https://api.github.com/users/matkoniecz/following{/other_user}","gists_url":"https://api.github.com/users/matkoniecz/gists{/gist_id}","starred_url":"https://api.github.com/users/matkoniecz/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/matkoniecz/subscriptions","organizations_url":"https://api.github.com/users/matkoniecz/orgs","repos_url":"https://api.github.com/users/matkoniecz/repos","events_url":"https://api.github.com/users/matkoniecz/events{/privacy}","received_events_url":"https://api.github.com/users/matkoniecz/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":{"login":"matkoniecz","id":899988,"avatar_url":"https://avatars.githubusercontent.com/u/899988?v=3","gravatar_id":"","url":"https://api.github.com/users/matkoniecz","html_url":"https://github.com/matkoniecz","followers_url":"https://api.github.com/users/matkoniecz/followers","following_url":"https://api.github.com/users/matkoniecz/following{/other_user}","gists_url":"https://api.github.com/users/matkoniecz/gists{/gist_id}","starred_url":"https://api.github.com/users/matkoniecz/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/matkoniecz/subscriptions","organizations_url":"https://api.github.com/users/matkoniecz/orgs","repos_url":"https://api.github.com/users/matkoniecz/repos","events_url":"https://api.github.com/users/matkoniecz/events{/privacy}","received_events_url":"https://api.github.com/users/matkoniecz/received_events","type":"User","site_admin":false},"milestone":null,"comments":119,"created_at":"2015-08-11T14:57:56Z","updated_at":"2015-08-24T19:42:16Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/gravitystorm/openstreetmap-carto/pulls/1736","html_url":"https://github.com/gravitystorm/openstreetmap-carto/pull/1736","diff_url":"https://github.com/gravitystorm/openstreetmap-carto/pull/1736.diff","patch_url":"https://github.com/gravitystorm/openstreetmap-carto/pull/1736.patch"},"body":"Currently used road style has some problems, one the most obvious one is that secondary and trunk colour too similar to landuse colours (#102).\r\n\r\nBut there are also other serious problems with basing design on UK road style.\r\n\r\nMarking different road types by colours in completely different hues works well for maps displaying primarily roads, with limited different styles for other features. This map differentiates wide range of landovers, POIs, borders and names. It is using more different styles than most maps. For example picture below presents road types on some of landcovers displayed in this style. \r\n\r\nIn this situation colours of many road types are closer to other features than to other road types (forest - trunk, motorway - river, tertiary - sand etc). That is not happening for example on Ordnance Survey map where number of differently displayed features is strictly limited.\r\n\r\n![selection_001 2](https://cloud.githubusercontent.com/assets/899988/9200594/d9fe2984-4048-11e5-8260-ac673b2aec4a.png)\r\n![selection_003](https://cloud.githubusercontent.com/assets/899988/9200595/db303900-4048-11e5-8937-9cce3e7d87e7.png)\r\n\r\nAlso, UK colour style is not universally known. For many people hierarchy of red, blue and green roads is not obvious.\r\n\r\nThis new road style is using narrower range of hues, making road of different classes more similar what should eliminate possibility of confusing them with other features and makes easier to avoid collisions on changing rendering of other elements. Steady progression of hue and lightness for major road types (motorway, trunk, primary, secondary, tertiary) should make more intuitive which roads are more important.\r\n\r\nRoad colours were also tuned to ensure that roads are well visible on all landcovers.\r\n\r\nRoads are now narrower, to improve map readability and make it prettier. Also, more road types are differentiated by width rather than by colour (white, wide tertiary).\r\n\r\nRailways are now more prominent and service tag for railways has bigger impact on rendering.\r\n\r\nColor of pedestrian and living_street is now more logical and intuitive, without making map uglier.\r\n\r\nFixes #102 (secondary and trunk colour too similar to landuse colours)\r\n\r\n![](http://i.cubeupload.com/9cIPtz.png)\r\n![](http://i.cubeupload.com/phzGbc.png)\r\n\r\nFixes #631 (tertiary roads more dominant than secondary on z10)\r\n![](http://i.cubeupload.com/vFL7N0.png)\r\n\r\nFixes #1272 (junction=motorway_junction names are hard to read)\r\n![](http://i.cubeupload.com/3MxNVH.png)\r\n\r\nFixes #319 (motorways on low zoom levels are very hard to notice and look like rivers)\r\n![world z 6 7 _ master -_ gsoc 53 357 -6 416 6 7 master - gsoc 200px](https://cloud.githubusercontent.com/assets/899988/9203496/d2f94e2a-4057-11e5-8b57-9e09494a7ab2.png)\r\n\r\nFixes #914 (motorway tunnels are nearly invisible on z13 and lower)\r\n![](cubeupload.com/im/rO6y49.png)\r\n\r\nFixes #1124 (make road-casing stronger)\r\n![](http://i.cubeupload.com/AvHeWF.png)\r\n\r\nFixes #1769 (improve living street rendering)\r\n\r\nReduces impact of #286 (some streets that are not joining may on zoom out misleadingly appear to be joining)\r\n![](http://i.cubeupload.com/FC1U7t.png)\r\n\r\nBefore using version containing changes from this PR on OSM website it is recommended to change map key for Default map layer.\r\n\r\nAmong potential problems are that it is now harder to recognise road type of given road, especially in situation where there is no possibility to compare it with other road types.\r\n\r\nSuch significant change will be confusing for current users of this style.\r\n\r\nUK color coding of roads is well known for many people, for them a new style - even assuming that it would be intuitive for them - will be less useful."},"comment":{"url":"https://api.github.com/repos/gravitystorm/openstreetmap-carto/issues/comments/134352199","html_url":"https://github.com/gravitystorm/openstreetmap-carto/pull/1736#issuecomment-134352199","issue_url":"https://api.github.com/repos/gravitystorm/openstreetmap-carto/issues/1736","id":134352199,"user":{"login":"matkoniecz","id":899988,"avatar_url":"https://avatars.githubusercontent.com/u/899988?v=3","gravatar_id":"","url":"https://api.github.com/users/matkoniecz","html_url":"https://github.com/matkoniecz","followers_url":"https://api.github.com/users/matkoniecz/followers","following_url":"https://api.github.com/users/matkoniecz/following{/other_user}","gists_url":"https://api.github.com/users/matkoniecz/gists{/gist_id}","starred_url":"https://api.github.com/users/matkoniecz/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/matkoniecz/subscriptions","organizations_url":"https://api.github.com/users/matkoniecz/orgs","repos_url":"https://api.github.com/users/matkoniecz/repos","events_url":"https://api.github.com/users/matkoniecz/events{/privacy}","received_events_url":"https://api.github.com/users/matkoniecz/received_events","type":"User","site_admin":false},"created_at":"2015-08-24T19:42:16Z","updated_at":"2015-08-24T19:42:16Z","body":"> Just to be sure, you haven't had time to look at that, have you?\r\n\r\nI experimented with it but for some reason that I am not remembering at this moment it went nowhere. It should still exist as one of many abandoned branches - I will dig it out and try again."}}