I am in the process of talking to my local city GIS office about importing their fire hydrant dataset. I will then (probably) expand to the other municipalities in my area, and then stop there.
One of their concerns is keeping the data on OSM up to date. I'll be talking to them on Friday, November 16th, 2018. Tags that are user visible on their arcgis application and probable relevant tags in OSM: Hydrant Number => ref Test Date => check_date, operational_status:date, or survey:date Pressure - Static/Residual => fire_hydrant:pressure (maybe add a new tags for difference in static/residual pressures?) Flow Rate => flow_rate (probably), possibly use fire:hydrant:awwa_class Flow at 20 PSI => No tagging scheme for this yet. Maybe add a new tag for that, like flow_rate:<PSI>? Model Number => model (maybe add manufacturer as well) Owner => operator (probably change CITY to "City of Grand Junction, CO" or similar) Route Number => I have no clue what this is for Tags that I intend to add either manually or through using the model number: fire_hydrant:diameter couplings couplings:type couplings:diameters pillar:type water_source wrench, cap:wrench (currently under discussion on OpenStreetMap wiki) Advantages of an import: Data comes from an official source and is unlikely to be outdated I don't have to map every fire hydrant manually Disadvantages of an import May conflict with some of my fire hydrant edits. Assumption that the dataset is complete (it isn't, but it is close) When running the import, I intend to do the following: 1) Do a download via overpass of fire hydrants 2) Using hydrants that I know exist in their dataset and OSM, write a validation rule to ensure that no two hydrants are closer than 10 feet/3 meters (assuming it is possible to do that using validator.mapcss rules) 3) Write validation rules to automagically add additional information to the fire hydrants, based off of spec sheets Somewhere in there, mess around with osmsync in order to enable easier updating of the data.
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