Re: [Tagging] Feature Proposal - RFC - sluice_gate
On Sun, Jan 9, 2011 at 2:36 PM, Paul Norman penor...@mac.com wrote: The question is, what else would go there? Flood gates don't belong there - that's the *usage* of the gate, not the *type* of gate. From a technical perspective you may be right, but practically speaking, we should design tagging schemes with usability in mind. People are likely to know that there is a flood gate, not that there is a hinged crest gate. So something like: waterway=flood_gate flood_gate=sluice_gate ...is more usable for non-techie nerds than something like: waterway=flow_control flow_control=sluice_gate usage=flood_gate Steve ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
On Mon, Jan 17, 2011 at 6:18 PM, Steve Bennett stevag...@gmail.com wrote: On Sun, Jan 9, 2011 at 2:36 PM, Paul Norman penor...@mac.com wrote: The question is, what else would go there? Flood gates don't belong there - that's the *usage* of the gate, not the *type* of gate. From a technical perspective you may be right, but practically speaking, we should design tagging schemes with usability in mind. People are likely to know that there is a flood gate, not that there is a hinged crest gate. On the other hand, what if one knows that there's a gate but not its purpose (for instance, when mapping drainage canals through swampy areas)? ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
On Sun, Jan 9, 2011 at 2:36 PM, Paul Norman penor...@mac.com wrote: The question is, what else would go there? Flood gates don't belong there - that's the *usage* of the gate, not the *type* of gate. From a technical perspective you may be right, but practically speaking, we should design tagging schemes with usability in mind. People are likely to know that there is a flood gate, not that there is a hinged crest gate. So something like: waterway=flood_gate flood_gate=sluice_gate ...is more usable for non-techie nerds than something like: waterway=flow_control flow_control=sluice_gate usage=flood_gate Most of the sluice gates around here are not flood gates. For some of the ones I've mapped I'm not sure if they're flood gates or not, but I know they're sluice gates because that is obvious from a quick look while to say if they're flood gates or not I would need to know how they're being used, when they're opened, etc ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
On Tue, Jan 18, 2011 at 10:41 AM, Nathan Edgars II nerou...@gmail.com wrote: On the other hand, what if one knows that there's a gate but not its purpose (for instance, when mapping drainage canals through swampy areas)? Indeed. How to cater for both situations? Steve ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
On 18 January 2011 09:18, Steve Bennett stevag...@gmail.com wrote: waterway=flood_gate flood_gate=sluice_gate ...is more usable for non-techie nerds than something like: waterway=flow_control flow_control=sluice_gate usage=flood_gate So why do we use highway=* for even small tracks? -1 ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
On Tue, Jan 18, 2011 at 2:19 PM, John Smith deltafoxtrot...@gmail.com wrote: So why do we use highway=* for even small tracks? The tagging system as a whole will never be entirely consistent, or even operate on consistent principles. The best we can do is fix small chunks at a time, and make those chunks as big as is practical. Therefore, let's not avoid fixing X just because it doesn't fix Y as well. Steve ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
On 18 January 2011 16:13, Steve Bennett stevag...@gmail.com wrote: On Tue, Jan 18, 2011 at 2:19 PM, John Smith deltafoxtrot...@gmail.com wrote: So why do we use highway=* for even small tracks? The tagging system as a whole will never be entirely consistent, or even operate on consistent principles. The best we can do is fix small chunks at a time, and make those chunks as big as is practical. Therefore, let's not avoid fixing X just because it doesn't fix Y as well. Exactly, so why should we use flood when at least half or more of these things have nothing to do with flooding? ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
Based on feedback, I've modified http://wiki.openstreetmap.org/wiki/Proposed_features/sluice_gate -Original Message- From: tagging-boun...@openstreetmap.org [mailto:tagging- boun...@openstreetmap.org] On Behalf Of Paul Norman Sent: Saturday, January 08, 2011 7:36 PM To: 'Tag discussion, strategy and related tools' Subject: Re: [Tagging] Feature Proposal - RFC - sluice_gate From: Steve Bennett On 5/01/2011 3:18 PM, John Smith wrote: Perhaps a more generic approach would work, eg waterway=flow_control flow_control=weir|sluice_gate|flood_gate|spillway_gate| Yeah something like that would be reasonable. What I'd like to see a lot more of is planning ahead: coming up with a scheme into which all future subtags can be slotted. It's very hard to change a tag once it's become popular. So perhaps: waterway=dam (a wall with water on one side) waterway=weir (a wall with water flowing over the top) waterway=flow_control (an opening through which water sometimes flows). flow_control=sluice_gate|flood_gate|spillway_gate|lock_gate... Then we get people who know this stuff to try and find exceptions that don't fit into the above scheme, and redesign it. I've been looking into this. How does this sound? waterway=dam and waterway=weir remain unchanged. waterway=flow_control - a device for controlling the flow of water flow_control=sluice_gate|discharge|... sluice_gate: a sluice gate. discharge: A discharge point like http://en.wikipedia.org/wiki/File:Howell-Bunger_valve.jpg The question is, what else would go there? Flood gates don't belong there - that's the *usage* of the gate, not the *type* of gate. ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
From: Steve Bennett On 5/01/2011 3:18 PM, John Smith wrote: Perhaps a more generic approach would work, eg waterway=flow_control flow_control=weir|sluice_gate|flood_gate|spillway_gate| Yeah something like that would be reasonable. What I'd like to see a lot more of is planning ahead: coming up with a scheme into which all future subtags can be slotted. It's very hard to change a tag once it's become popular. So perhaps: waterway=dam (a wall with water on one side) waterway=weir (a wall with water flowing over the top) waterway=flow_control (an opening through which water sometimes flows). flow_control=sluice_gate|flood_gate|spillway_gate|lock_gate... Then we get people who know this stuff to try and find exceptions that don't fit into the above scheme, and redesign it. I've been looking into this. How does this sound? waterway=dam and waterway=weir remain unchanged. waterway=flow_control - a device for controlling the flow of water flow_control=sluice_gate|discharge|... sluice_gate: a sluice gate. discharge: A discharge point like http://en.wikipedia.org/wiki/File:Howell-Bunger_valve.jpg The question is, what else would go there? Flood gates don't belong there - that's the *usage* of the gate, not the *type* of gate. ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
On 9 January 2011 13:36, Paul Norman penor...@mac.com wrote: I've been looking into this. How does this sound? waterway=dam and waterway=weir remain unchanged. I'm still in favour of shifting these into flow control... The question is, what else would go there? Flood gates don't belong there - that's the *usage* of the gate, not the *type* of gate. The same thing could be said for the other types of gates, eg lock gates are called that because of their function. ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
2011/1/5 Steve Bennett stevag...@gmail.com: On 4/01/2011 7:20 AM, Paul Norman wrote: They both have elements of flow control, but function in quite different ways and look very different. A weir is used to raise the water level or control flow, with water flowing over the top. A sluice gate is essentially a valve for small waterways. +1 In this case, why not something like: waterway=weir weir=sluice_gate -1 If I interpret the information from wikipedia correctly sluice_gates are not weirs (they can be part of weirs). weirs are overflown, while sluice_gates can be opened and then let the water flow underneath them. cheers, Martin ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
2011/1/5 John Smith deltafoxtrot...@gmail.com: On 5 January 2011 15:16, Steve Bennett stevag...@gmail.com wrote: waterway=dam (a wall with water on one side) waterway=weir (a wall with water flowing over the top) waterway=flow_control (an opening through which water sometimes flows). flow_control=sluice_gate|flood_gate|spillway_gate|lock_gate... Ummm, both dams and weirs are also methods of flow control, I'd move them both to be subtags similar to what you suggested. +1 would also be more clear in regard to already tagged objects. cheers, Martin ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
On 5/01/2011 7:27 PM, John Smith wrote: On 5 January 2011 15:16, Steve Bennettstevag...@gmail.com wrote: waterway=dam (a wall with water on one side) waterway=weir (a wall with water flowing over the top) waterway=flow_control (an opening through which water sometimes flows). flow_control=sluice_gate|flood_gate|spillway_gate|lock_gate... Ummm, both dams and weirs are also methods of flow control, I'd move them both to be subtags similar to what you suggested. I'm working on the basis that it's not possible to move any established tag. Would be happy to hear suggestions for how to accomplish that, though. Steve ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
On 4 January 2011 07:19, Ulf Lamping ulf.lamp...@googlemail.com wrote: BTW: My feeling is, that sluice gates formerly were tagged with waterway=weir most of the time anyway. Doesn't mean they shouldn't be updated/added if there is a better tag... The suggested term floodgate would be more intuitive for me as a none native speaker - if the term fits for native speakers as well. I actually think we need some way to indicate scale, wikipedia seems to indicate sluice gates are usually on the small side of things, spillway gates are usually much larger, for a good example of spillway gates see the photos Liz linked to of Wivenhoe and Somerset, those dams were specifically built to reduce or prevent Brisbane (state capital of Queensland Australia) from flooding. In fact Wivenhoe was upgraded in recent times to hold 200% normal operating capacity. As for floodgates these aren't usually closed except in times of flooding and should be tagged differently again so they can be rendered differently for those that care about such things. ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
On 4/01/2011 7:20 AM, Paul Norman wrote: They both have elements of flow control, but function in quite different ways and look very different. A weir is used to raise the water level or control flow, with water flowing over the top. A sluice gate is essentially a valve for small waterways. In this case, why not something like: waterway=weir weir=sluice_gate I'm wary of the endless drive to create more high-level tags. It increases the burden on reusers of the data. Steve ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
On 5 January 2011 11:38, Steve Bennett stevag...@gmail.com wrote: I'm wary of the endless drive to create more high-level tags. It increases the burden on reusers of the data. Normally I'd agree with you 100%, but in this case it's a bit different because as pointed out earlier weirs tend to be non-moving for the most part (even if they can be temporarily removed) and the water freely flows over the top, sluice gates allow water to be diverted and generally don't have water flowing over the top of them and spillway gates of dams can be dry 99% of the time unless the dam is so full water needs to be released to prevent water from flowing over the top of them. Perhaps a more generic approach would work, eg waterway=flow_control flow_control=weir|sluice_gate|flood_gate|spillway_gate| ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
On 5/01/2011 3:18 PM, John Smith wrote: Perhaps a more generic approach would work, eg waterway=flow_control flow_control=weir|sluice_gate|flood_gate|spillway_gate| Yeah something like that would be reasonable. What I'd like to see a lot more of is planning ahead: coming up with a scheme into which all future subtags can be slotted. It's very hard to change a tag once it's become popular. So perhaps: waterway=dam (a wall with water on one side) waterway=weir (a wall with water flowing over the top) waterway=flow_control (an opening through which water sometimes flows). flow_control=sluice_gate|flood_gate|spillway_gate|lock_gate... Then we get people who know this stuff to try and find exceptions that don't fit into the above scheme, and redesign it. Steve ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
Hi. I'm not very familiar with waterway tagging, but AFAIK these are tagged as riverbanks, too. Your proposal doesn't say anything about how to map sluice gates at these bigger rivers as it proposes the usage on nodes only. As sluice gates assumably will be more on bigger waterways, that seems to be an important point to add for me. regards Peter Am 03.01.2011 02:59, schrieb Paul Norman: I've set up a proposal for sluice_gates, which are typically found on small waterways in agricultural areas at http://wiki.openstreetmap.org/wiki/Proposed_features/sluice_gate ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
On Mon, 03 Jan 2011 11:04:27 +0100 Ulf Lamping ulf.lamp...@googlemail.com wrote: Am 03.01.2011 02:59, schrieb Paul Norman: I've set up a proposal for sluice_gates, which are typically found on small waterways in agricultural areas at http://wiki.openstreetmap.org/wiki/Proposed_features/sluice_gate What's the difference to waterway=weir? http://wiki.openstreetmap.org/wiki/Tag:waterway%3Dweir Regards, ULFL a weir is much bigger, and a sluice gate may be a sub part of a weir http://billiau.net/zoph/photo.php?photo_id=17790 is Hay Weir on the Murrumbidgee, with the gates raised completely for free flow ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
On 3 January 2011 20:04, Ulf Lamping ulf.lamp...@googlemail.com wrote: What's the difference to waterway=weir? A lot of weirs I've seen don't have any kind of gates, they just semi-dam a river to provide a water supply for nearby towns, the water freely flows over the top of the weir. ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
On Mon, 3 Jan 2011 20:37:10 +1000 John Smith deltafoxtrot...@gmail.com wrote: On 3 January 2011 20:04, Ulf Lamping ulf.lamp...@googlemail.com wrote: What's the difference to waterway=weir? A lot of weirs I've seen don't have any kind of gates, they just semi-dam a river to provide a water supply for nearby towns, the water freely flows over the top of the weir. like this http://museumvictoria.museum/collections/items/766657/negative-weir-bridge-across-the-murray-river-mildura-victoria-circa-1925 to check the list from their archives would provide a good idea of the range of structures involved http://museumvictoria.museum/collections/tags/weirs?t=Imagesize=50 ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
On 3 January 2011 21:06, Elizabeth Dodd ed...@billiau.net wrote: like this http://museumvictoria.museum/collections/items/766657/negative-weir-bridge-across-the-murray-river-mildura-victoria-circa-1925 I doubt I've seen such a large weir in person, I was thinking more along the lines of this: http://static.panoramio.com/photos/original/13825102.jpg ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
2011/1/3 Ulf Lamping ulf.lamp...@googlemail.com: Am 03.01.2011 02:59, schrieb Paul Norman: I've set up a proposal for sluice_gates, which are typically found on small waterways in agricultural areas at http://wiki.openstreetmap.org/wiki/Proposed_features/sluice_gate What's the difference to waterway=weir? http://wiki.openstreetmap.org/wiki/Tag:waterway%3Dweir IMHO the difference is that a weir is used to control the water level (and sometimes used to produce energy) while a sluice gate is used for ships to navigate in rivers/canals with different levels (it is part of steps for ships). cheers, Martin ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
On 3 January 2011 21:55, M∡rtin Koppenhoefer dieterdre...@gmail.com wrote: IMHO the difference is that a weir is used to control the water level (and sometimes used to produce energy) while a sluice gate is used for ships to navigate in rivers/canals with different levels (it is part of steps for ships). Depends on the type of gates as to the use, doesn't it? ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
On 03/01/2011 10:04, Ulf Lamping wrote: Am 03.01.2011 02:59, schrieb Paul Norman: I've set up a proposal for sluice_gates, which are typically found on small waterways in agricultural areas at http://wiki.openstreetmap.org/wiki/Proposed_features/sluice_gate What's the difference to waterway=weir? http://wiki.openstreetmap.org/wiki/Tag:waterway%3Dweir A weir is an immovable barrier to retain water level: http://i.telegraph.co.uk/telegraph/multimedia/archive/01789/Andy-Brown-bath_1789275i.jpg Towards the top of that picture behind the larger tree is a sluice gate: http://s0.geograph.org.uk/photos/17/89/178908_0f6d11ea.jpg Which is a gate that can be raised to allow flood waters to pass through quickly, or in some instances to deliberately flood land for agricultural use: http://www.nrm.gov.au/projects/vic/gbro/images/2006-08a.jpg Cheers Dave F. ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
On 03/01/2011 11:55, M∡rtin Koppenhoefer wrote: 2011/1/3 Ulf Lampingulf.lamp...@googlemail.com: Am 03.01.2011 02:59, schrieb Paul Norman: I've set up a proposal for sluice_gates, which are typically found on small waterways in agricultural areas at http://wiki.openstreetmap.org/wiki/Proposed_features/sluice_gate What's the difference to waterway=weir? http://wiki.openstreetmap.org/wiki/Tag:waterway%3Dweir ...while a sluice gate is used for ships to navigate in rivers/canals with different levels (it is part of steps for ships). Those are called locks: http://en.wikipedia.org/wiki/Lock_%28water_transport%29 ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
On 03/01/2011 15:10, Elizabeth Dodd wrote: On Mon, 03 Jan 2011 15:00:08 + Dave F.dave...@madasafish.com wrote: A weir is an immovable barrier to retain water level: http://i.telegraph.co.uk/telegraph/multimedia/archive/01789/Andy-Brown-bath_1789275i.jpg Even that isn't completely correct Weirs on the Murray and Murrumbidgee can be removed during flood times Mildura Weir out of the water http://www.facebook.com/photo.php?fbid=10150349468545206set=a.10150349467770206.581577.329408210205 Balranald Weir out of the water http://billiau.net/zoph/photo.php?photo_id=17253 Although it's hard to decipher what's happening in the second photo' , I would describe the movable parts as sluice gates not weirs. Cheers Dave F. ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
Let's take it on the opposite, we have devices to control water, sort of 'dams'. * Water can go above, under, trough, or between gates * Can be fixed, moving, removable * Can be nodes, ways, or polygons I'm no expert in english, but somebody here could end up with a set of english word that would fit? ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
They both have elements of flow control, but function in quite different ways and look very different. A weir is used to raise the water level or control flow, with water flowing over the top. A sluice gate is essentially a valve for small waterways. -Original Message- From: tagging-boun...@openstreetmap.org [mailto:tagging- boun...@openstreetmap.org] On Behalf Of Ulf Lamping Sent: Monday, January 03, 2011 2:04 AM To: tagging@openstreetmap.org Subject: Re: [Tagging] Feature Proposal - RFC - sluice_gate Am 03.01.2011 02:59, schrieb Paul Norman: I've set up a proposal for sluice_gates, which are typically found on small waterways in agricultural areas at http://wiki.openstreetmap.org/wiki/Proposed_features/sluice_gate What's the difference to waterway=weir? http://wiki.openstreetmap.org/wiki/Tag:waterway%3Dweir Regards, ULFL ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
All the sluice gates I've seen are on the scale of 1m in opening size. A quick google image search also seems to only turn up small gates. I suppose there could be some large gates out there, so the proposal might need to include ways or even areas. As for riverbanks, the ones I've seen are near riverbanks, but not actually on them. In the case of a sluice gate that is actually on the bank, you'd have a node that is shared between the small waterway (waterway=ditch or waterway=stream), the riverbank, and is tagged with waterway=sluice_gate -Original Message- From: tagging-boun...@openstreetmap.org [mailto:tagging- boun...@openstreetmap.org] On Behalf Of Peter Wendorff Sent: Monday, January 03, 2011 1:52 AM To: tagging@openstreetmap.org Subject: Re: [Tagging] Feature Proposal - RFC - sluice_gate Hi. I'm not very familiar with waterway tagging, but AFAIK these are tagged as riverbanks, too. Your proposal doesn't say anything about how to map sluice gates at these bigger rivers as it proposes the usage on nodes only. As sluice gates assumably will be more on bigger waterways, that seems to be an important point to add for me. regards Peter Am 03.01.2011 02:59, schrieb Paul Norman: I've set up a proposal for sluice_gates, which are typically found on small waterways in agricultural areas at http://wiki.openstreetmap.org/wiki/Proposed_features/sluice_gate ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
On 03/01/2011 21:01, Richard Welty wrote: floodgate would seem to be the general term for these sorts of things; sluice_gate would be a subtype: I would say it's the other way around - flood prevention is one use of a sluice gate. As I pointed out, a sluice gate an be used for irrigation purposes. Dave F. ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
Am 03.01.2011 21:20, schrieb Paul Norman: They both have elements of flow control, but function in quite different ways and look very different. A weir is used to raise the water level or control flow, with water flowing over the top. A sluice gate is essentially a valve for small waterways. You might add such a description to the wiki page, as others might be confused as much as I was. BTW: My feeling is, that sluice gates formerly were tagged with waterway=weir most of the time anyway. The suggested term floodgate would be more intuitive for me as a none native speaker - if the term fits for native speakers as well. Regards, ULFL ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
On 1/3/11 4:16 PM, Dave F. wrote: On 03/01/2011 21:01, Richard Welty wrote: floodgate would seem to be the general term for these sorts of things; sluice_gate would be a subtype: I would say it's the other way around - flood prevention is one use of a sluice gate. As I pointed out, a sluice gate an be used for irrigation purposes. i see your point, but the result is that i don't that we have a proper subset relationship here. the tagging selected will of necessity be a compromise, then. richard ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
On Mon, 3 Jan 2011 12:33:18 -0800 Paul Norman penor...@mac.com wrote: All the sluice gates I've seen are on the scale of 1m in opening size. A quick google image search also seems to only turn up small gates. I suppose there could be some large gates out there, so the proposal might need to include ways or even areas. If you check this article http://www.theaustralian.com.au/news/nation/sightseers-flood-to-spilling-dam/story-e6frg6nf-1225936851387 you will find the following synonyms used floodgate spillway gate spillgate sluice gate and here is the official picture of Wivenhoe Dam http://www.seqwater.com.au/public/sites/default/files/userfiles/image/dams/wivenhoe_spillway.jpg and the official picture of Somerset Dam http://www.seqwater.com.au/public/sites/default/files/userfiles/image/dams/somerset_dam2.jpg here, in irrigated agriculture the small things are called pipe ends and headwalls I don't think either of these terms are suitable. http://www.colyconcrete.com.au/images/content-images/altin-headwall-steeldoor-2.jpg http://www.colyconcrete.com.au/images/content-images/altin-headwall-steeldoor-1.jpg http://www.colyconcrete.com.au/images/content-images/altin-headwall-stepped-2.jpg ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
On Mon, 03 Jan 2011 15:23:34 + Dave F. dave...@madasafish.com wrote: Balranald Weir out of the water http://billiau.net/zoph/photo.php?photo_id=17253 Although it's hard to decipher what's happening in the second photo' , I would describe the movable parts as sluice gates not weirs. When the flood is over I'll take a chance to photograph the weir in place. It is a weir, intended to regulate water flow. it does not have sluice gates The information sign onsite says Structure: A concrete and steel weir with a crest length of 40 metres incorporating removable stop panels and trestles which can be lowered during floods. http://billiau.net/zoph/photo.php?photo_id=17250 It also contains a Deelder Fish Lock http://billiau.net/zoph/photo.php?photo_id=17252 ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
On Mon, 03 Jan 2011 18:28:06 +0100 yvecai yve...@gmail.com wrote: Let's take it on the opposite, we have devices to control water, sort of 'dams'. * Water can go above, under, through, or between gates * Can be fixed, moving, removable * Can be nodes, ways, or polygons I'm no expert in english, but somebody here could end up with a set of english word that would fit? just add a lock for boats and a lock for fish and we'll be almost done ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
[Tagging] Feature Proposal - RFC - sluice_gate
I've set up a proposal for sluice_gates, which are typically found on small waterways in agricultural areas at http://wiki.openstreetmap.org/wiki/Proposed_features/sluice_gate ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Feature Proposal - RFC - sluice_gate
On 3 January 2011 11:59, Paul Norman penor...@mac.com wrote: I've set up a proposal for sluice_gates, which are typically found on small waterways in agricultural areas at http://wiki.openstreetmap.org/wiki/Proposed_features/sluice_gate You might want to add an example photo for those not familiar with these... ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
