Proposal:Fire Extinguisher Extension
| Fire Extinguisher Extension | |
|---|---|
| Proposal status: | Draft (under way) |
| Proposed by: | DerSton |
| Draft started: | 2024-10-05 |
Proposal
My proposal contains adding some more information to the tagging of fire extinguisher. This means adding fire_extinguisher:type=*, fire_extinguisher:agent=* and fire_extinguisher:quantity=*. For simplicity and because it is similar to DE:Tag:emergency=fire hydrant, emergency=fire_extinguisher stays the same just adding the possibility of more available information for fighting fires or similar.
Rationale
I think the proposal is needed because of lack of information. If someone wants to make a product that uses OSM data to maybe help someone fight fires it is absolutely necessary to know the type and agent of the extinguisher because of incompatibility of some agents with specific fires.
For the extinguisher type I chose 
DIN EN 2 because there the different types of fire are already grouped pretty reasonably in A, B, C, D and F providing enough information for most use cases. For even more detail the agent tag can be filled with the specific matter contained in the extinguisher pretty much telling someone exactly for what it can be used. The quantity information can be helpful to know the amount of fire that can be fought.
Tagging
| Tag | Description |
|---|---|
| emergency=fire_extinguisher | Marks the presence of a fire extinguisher |
| fire_extinguisher:type=* | The type of fire the extinguisher should be used on according to DIN EN 2
|
| fire_extinguisher:agent=* | The type of agent the fire extinguisher contains |
| fire_extinguisher:quantity=* | The quantity of agent the fire extinguisher contains in kg
|
| Value | Description | Symbol |
|---|---|---|
| A | Fires involving solid substances, mainly organic in nature, which normally burn while forming embers | 
|
| B | Fires involving liquid or liquid substances | 
|
| C | Gas fires | 
|
| D | Metal fires | 
|
| F | Fires involving cooking oils/fats in deep-frying and deep-frying devices and other kitchen equipment and appliances | 
|
| Value | Description |
|---|---|
| water | Cooling effect |
| foam | Foam works by forming a layer between air and fire |
| powder | Extinguishing power usually works by chocking the fire. There are many types of extinguishing power
|
| carbon_dioxide | Take away the oxygen from the fire |
| inert_gas | |
| .... | |
Examples
Possible rendering
Version 1
With this design someone would immediately see which classes belong to the Extinguisher, but it can be a bit much for a map that is not entirely made for fire fighting or emergency equipment. And the icon would have to be generated in many versions. Maybe not practical for everyone. For that reason Version 2.
Version 2
This more simple version does not display the classes but other than the current rendering proposal it is based on EN ISO 7010 so it might be easier to understand or more uniform with existing norms and future icons.
Either way rendering the extinguisher on Carto is not a good idea.
Features/Pages affected
Tag:emergency=fire extinguisher
maybe Key:emergency
Comments
Please comment on the discussion page.