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Maximum vs Average Incline

This page needs a more detailed description. It's unclear to me whether incline=* applies to max incline or average incline! I will correct the main page to avg incline, however there should be a tag considering max incline too. If this was considered for max incline then change it back, we would then need a tag for average incline however. We could use incline:max= Value in Percentage if not noted otherwise and incline: Value in Percentage for average incline. For uses where incline is commonly given in degrees (mainly inclines over 100%), one should tag incline=40° instead of incline=40 which would signify incline=40%. --Extremecarver 13:41, 28 November 2008 (UTC)

I don't think it's the best idea. The max incline is much more informative (to wheelchair users for instance) while the average incline can be constructed from contours, at least over longer ascents (for shorter ascent an avg incline is not really needed). Ipofanes 13:48, 28 November 2008 (UTC)
I also think this tag is used for maximum incline, as that's the number that can be found on the traffic signs as well. --Eimai 13:56, 28 November 2008 (UTC)
o.k. I will then change the guideline to maximum incline (indicating that this maximum incline should be valid for 1m at least). This still means that we have to come up with some proposal on average incline IMHO. Or do you have a better solution?--Extremecarver 14:25, 28 November 2008 (UTC)

Provide ele-Tags for the nodes at the top and bottom of an incline (or at the next crossing if it is not far). You see this in topographical maps a lot and I think it is a good idea, especially for cases where the contours are messy. Ipofanes 08:19, 5 December 2008 (UTC)

How to map an incline on a market place?


if there is a steep area like a market place, where no footways are tagged, how will that be mapped? This is needed e.g. for wheelchair routing.


My suggestion is to apply ele=* to the edges of the area, since incline would need a precise direction in this case. --RalpH himself 20:59, 10 April 2009 (UTC)

Average incline

The tag defines the maximum incline, which might be useful for most users. But sometimes it is just not possible to clearly say what the maximum incline is, but only what the average incline is. Could we not just add the tag incline:avg=* for that? Better to have an average value, than nothing. --Driver2 22:33, 9 April 2009 (UTC)

Common and extreme inclines

I think the statement "Ways with a steepness of under 10% are seldom signposted" is incorrect, at least in the US. Grades of 6% and 7% on motor highways through mountainous areas commonly are posted, as a warning to drivers of heavy trucks. I don't want to just change this statement without better understanding the situation in other parts of the world, or whether something else may have been meant. --EdH 22:33, 10 December 2010 (UTC)

Seems it was my personal estimate; I haven't seen many incline signs anyway; even on the Norwegian and Spanish mountain roads they were quite rare. European motorways generally don't exist in that mountaineous regions, but there might be cases like you've described. I'll rephrase it. Alv 14:38, 11 December 2010 (UTC)

Use on nodes

Until recently, this page simply read "The use of this tag has limited (if any) usage, as nodes do not have any direction." The taginfo stats show that it is hardly ever used on nodes, so I wonder: Why allow use on nodes at all? --Tordanik 12:19, 29 May 2015 (UTC)

I agree, that's why I added some reasons explaining why it is bad on nodes (and probably undesired as well on very small segments where it is not significant). steep inclines (>50%) require a minimum length of a half meter, small inclines (5-15%) require longer lengths (several meters at least). This should be justified depending on the usage (longer for 4-wheel vehicles, than for cycleways, and then for footways taking care finally about accessiblity for wheelchairs or people with difficulties for walking).
If we think things in terms of accessibility and security (for respecting the maximum speed and avoiding prolongated accelerations) a node is clearly not enough, we must be able to locate at least a segment where this tag applies. — Verdy_p (talk) 17:22, 29 May 2015 (UTC)