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Implement private road tagging (#1174)

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Fixes #1066 

This PR adds a new field `access` in the transportation layer, which will be set to `no` if the `access` tag is either `no` or `private`.  While `private` is the more popular value by a 17:1 ratio, I went with `no` because it's smaller in the tiles.  In addition, the text `no` opens up the future possibility of other text-based access values such as `destination`, `customers`, or `permit`.

The screenshot below shows an example of access tagging for a road on a military base:

![image](https://user-images.githubusercontent.com/3254090/129431491-9acbaeca-bf18-4384-8177-2c198834865c.png)
This commit is contained in:
Brian Sperlongano
2021-08-14 01:04:17 -04:00
committed by GitHub
parent fdb9ae58cd
commit 45d825e212
4 changed files with 44 additions and 2 deletions
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9
layers/transportation/update_transportation_merge.sql
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@@ -29,10 +29,14 @@ SELECT (ST_Dump(ST_LineMerge(ST_Collect(geometry)))).geom AS geometry,
foot,
horse,
mtb_scale,
CASE
WHEN access IN ('private', 'no')
THEN 'no'
ELSE NULL::text END AS access,
layer
FROM osm_highway_linestring_gen_z11
-- mapping.yaml pre-filter: motorway/trunk/primary/secondary/tertiary, with _link variants, construction, ST_IsValid()
GROUP BY highway, network, construction, is_bridge, is_tunnel, is_ford, bicycle, foot, horse, mtb_scale, layer
GROUP BY highway, network, construction, is_bridge, is_tunnel, is_ford, bicycle, foot, horse, mtb_scale, access, layer
) /* DELAY_MATERIALIZED_VIEW_CREATION */;
CREATE INDEX IF NOT EXISTS osm_transportation_merge_linestring_gen_z11_geometry_idx
ON osm_transportation_merge_linestring_gen_z11 USING gist (geometry);
@@ -53,6 +57,7 @@ SELECT ST_Simplify(geometry, ZRes(12)) AS geometry,
foot,
horse,
mtb_scale,
access,
layer
FROM osm_transportation_merge_linestring_gen_z11
WHERE highway NOT IN ('tertiary', 'tertiary_link')
@@ -77,6 +82,7 @@ SELECT ST_Simplify(geometry, ZRes(11)) AS geometry,
foot,
horse,
mtb_scale,
access,
layer
FROM osm_transportation_merge_linestring_gen_z10
-- Current view: motorway/primary/secondary, with _link variants and construction
@@ -100,6 +106,7 @@ FROM osm_transportation_merge_linestring_gen_z9
WHERE (highway IN ('motorway', 'trunk', 'primary') OR
construction IN ('motorway', 'trunk', 'primary'))
AND ST_IsValid(geometry)
AND access IS NULL
GROUP BY highway, network, construction, is_bridge, is_tunnel, is_ford
) /* DELAY_MATERIALIZED_VIEW_CREATION */;
CREATE INDEX IF NOT EXISTS osm_transportation_merge_linestring_gen_z8_geometry_idx