1b0b1fd121
Closes #1134 Adds a `concurrency_index` column to `osm_route_member` as described in #1134. For example, listing concurrencies on a [segment of the Washington Bridge](https://www.openstreetmap.org/way/43080535) in Providence, Rhode Island, USA: ``` openmaptiles=# select osm_id, network, ref, network_type, name, concurrency_index from osm_route_member where member=43080535 order by concurrency_index asc; osm_id | network | ref | network_type | name | concurrency_index ----------+---------+-----+---------------+---------------+------------------- -1694950 | US:I | 195 | us-interstate | I 195 (RI/MA) | 1 -2308410 | US:US | 6 | us-highway | US 6 (RI) | 2 -1347856 | US:US | 1A | us-highway | US 1A (RI) | 3 -2309143 | US:US | 44 | us-highway | US 44 (RI) | 4 (4 rows) ```
103 lines
4.3 KiB
PL/PgSQL
103 lines
4.3 KiB
PL/PgSQL
CREATE TABLE IF NOT EXISTS ne_10m_admin_0_bg_buffer AS
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SELECT ST_Buffer(geometry, 10000)
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FROM ne_10m_admin_0_countries
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WHERE iso_a2 = 'GB';
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CREATE OR REPLACE VIEW gbr_route_members_view AS
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SELECT 0,
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osm_id,
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substring(ref FROM E'^[AM][0-9AM()]+'),
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CASE WHEN highway = 'motorway' THEN 'omt-gb-motorway' ELSE 'omt-gb-trunk' END
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FROM osm_highway_linestring
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WHERE length(ref) > 0
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AND ST_Intersects(geometry, (SELECT * FROM ne_10m_admin_0_bg_buffer))
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AND highway IN ('motorway', 'trunk')
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;
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-- Create GBR relations (so we can use it in the same way as other relations)
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DELETE
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FROM osm_route_member
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WHERE network IN ('omt-gb-motorway', 'omt-gb-trunk');
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-- etldoc: osm_highway_linestring -> osm_route_member
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INSERT INTO osm_route_member (osm_id, member, ref, network)
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SELECT *
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FROM gbr_route_members_view;
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CREATE OR REPLACE FUNCTION osm_route_member_network_type(network text, name text, ref text) RETURNS route_network_type AS
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$$
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SELECT CASE
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WHEN network = 'US:I' THEN 'us-interstate'::route_network_type
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WHEN network = 'US:US' THEN 'us-highway'::route_network_type
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WHEN network LIKE 'US:__' THEN 'us-state'::route_network_type
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-- https://en.wikipedia.org/wiki/Trans-Canada_Highway
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-- TODO: improve hierarchical queries using
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-- http://www.openstreetmap.org/relation/1307243
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-- however the relation does not cover the whole Trans-Canada_Highway
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WHEN
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(network = 'CA:transcanada') OR
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(network = 'CA:BC:primary' AND ref IN ('16')) OR
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(name = 'Yellowhead Highway (AB)' AND ref IN ('16')) OR
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(network = 'CA:SK:primary' AND ref IN ('16')) OR
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(network = 'CA:ON:primary' AND ref IN ('17', '417')) OR
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(name = 'Route Transcanadienne') OR
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(network = 'CA:NB:primary' AND ref IN ('2', '16')) OR
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(network = 'CA:PE' AND ref IN ('1')) OR
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(network = 'CA:NS' AND ref IN ('104', '105')) OR
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(network = 'CA:NL:R' AND ref IN ('1')) OR
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(name = 'Trans-Canada Highway')
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THEN 'ca-transcanada'::route_network_type
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WHEN network = 'omt-gb-motorway' THEN 'gb-motorway'::route_network_type
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WHEN network = 'omt-gb-trunk' THEN 'gb-trunk'::route_network_type
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END;
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$$ LANGUAGE sql IMMUTABLE
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PARALLEL SAFE;
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-- etldoc: osm_route_member -> osm_route_member
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-- see http://wiki.openstreetmap.org/wiki/Relation:route#Road_routes
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UPDATE osm_route_member
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SET network_type = osm_route_member_network_type(network, name, ref)
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WHERE network != ''
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AND network_type IS DISTINCT FROM osm_route_member_network_type(network, name, ref)
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;
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CREATE OR REPLACE FUNCTION update_osm_route_member() RETURNS void AS
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$$
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BEGIN
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DELETE
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FROM osm_route_member AS r
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USING
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transportation_name.network_changes AS c
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WHERE network IN ('omt-gb-motorway', 'omt-gb-trunk')
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AND r.osm_id = c.osm_id;
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INSERT INTO osm_route_member (osm_id, member, ref, network)
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SELECT r.*
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FROM gbr_route_members_view AS r
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JOIN transportation_name.network_changes AS c ON
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r.osm_id = c.osm_id;
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UPDATE
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osm_route_member AS r
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SET network_type = osm_route_member_network_type(network, name, ref)
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FROM transportation_name.network_changes AS c
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WHERE network != ''
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AND network_type IS DISTINCT FROM osm_route_member_network_type(network, name, ref)
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AND r.member = c.osm_id;
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END;
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$$ LANGUAGE plpgsql;
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CREATE INDEX IF NOT EXISTS osm_route_member_network_idx ON osm_route_member ("network");
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CREATE INDEX IF NOT EXISTS osm_route_member_member_idx ON osm_route_member ("member");
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CREATE INDEX IF NOT EXISTS osm_route_member_name_idx ON osm_route_member ("name");
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CREATE INDEX IF NOT EXISTS osm_route_member_ref_idx ON osm_route_member ("ref");
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CREATE INDEX IF NOT EXISTS osm_route_member_network_type_idx ON osm_route_member ("network_type");
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ALTER TABLE osm_route_member ADD COLUMN IF NOT EXISTS concurrency_index int;
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INSERT INTO osm_route_member (id, concurrency_index)
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SELECT
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id,
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ROW_NUMBER() over (PARTITION BY member ORDER BY network_type, network, LENGTH(ref), ref) AS concurrency_index
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FROM osm_route_member
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ON CONFLICT (id) DO UPDATE SET concurrency_index = EXCLUDED.concurrency_index;
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