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Drinking water (Hamburg)

Existing drinking-water points from OpenStreetMap. Only public ones count as coverage.

Layer id: hamburg-drinking-water · Geometry: point · Features: 79 · Region: Hamburg · Project: Hamburg · OSM data as of: 2026-11-01T18:19:12Z · Exported: 2026-11-01T18:20:32+00:00 · Defined in: layers/hamburg.py

Parameters

Parameter Value Description
walking_distance_m 300 m Catchment radius around public drinking water, straight line.

Attributes

Attribute Type Label Source Tagged
osm_id string OSM object OSM element id
name (optional) string Name OSM tag name 9 %
description (optional) string Description OSM tag description 9 %
opening_hours (optional) string Opening hours OSM tag opening_hours 8 %
access (optional) string Access OSM tag access 32 %
indoor (optional) string Indoors OSM tag indoor 24 %
restricted_by string Restricted by ids of matching rules in restriction
public boolean Public true if no rule in restriction matches
  • Access (access):
    • yes: Public (25)
    • permissive: Permitted
    • customers: Customers only
    • private: Private
    • no: No access
  • Indoors (indoor):
    • yes: Yes (12)
    • no: No (7)
  • Public (public) – closed list:
    • true: Public drinking water – Counts as public coverage. (67)
    • false: Restricted drinking water – Not counted as public coverage. (12)

Which drinking water counts as public

Existing drinking-water points create a 300 m catchment (straight line). Points matching any of these rules are restricted and are not counted.

Matching rule ids are stored in the attribute restricted_by.

Access restricted

Only for customers, private, or no public access. It does not serve the general public.

  • Applies if: Access is customers (Customers only) or private (Private) or no (No access) or permit or permissive_customers
  • Matches: 0 of 79
  • Source: OSM tag access
  • Status: Assumption
  • Rule id: restricted_access

Indoors

Inside a building (e.g. a shop or university), usable only during opening hours. Not a public outdoor fountain.

  • Applies if: Indoors is yes (Yes)
  • Matches: 12 of 79
  • Source: OSM tag indoor
  • Status: Assumption
  • Rule id: indoor

Assumptions

OpenStreetMap is the only data source

Hydrants and drinking-water points are taken from OSM only. Objects not mapped in OSM are missing from the analysis. Where few drinking-water points are mapped, the coverage gap is overstated.

Status: Assumption

Sources

Source Used for License
OpenStreetMap All features and their tags ODbL 1.0