Talk:Key:maxbogieweight

It has been proposed that this page or section be merged with Key:maxaxleload.

I am pretty sure, that the maxbogieweight is actually the maximum tandem axle weight, see this road sign:

There are two indicators that speak for this:

1. The English Wikipedia article for Bogie exclusively shows pictures of tandem axles in the article.
2. The places where the tag is currently used most, according to taginfo (except that odd blob in the middle of Russia) coincides mostly with the countries shown in this table on Wikipedia about European street signs (Search for "Maximum weight per tandem axle"): The sign is apparently only known throughout Scandinavia, Estonia and Romania

--Westnordost (talk) 19:38, 25 June 2019 (UTC)

Apparently I was mistaken in thinking that "bogie" is just another term for "axle". (When I first encountered this page, all it contained was "???".) Thank you for the correction; I'll fix the articles accordingly. Tandem axle weight restrictions are also found in some U.S. states like Ohio and Texas:

 – Minh Nguyễn ^💬 19:49, 25 June 2019 (UTC)

Axis number

There is no show how to indicate the load in the case of a different number of axles.

Example (RU): http://gkhb.cap.ru/Content/photo/201802/19/Albom264712/slajd3.jpg

Translation:

• maximum weight 5t
• maximum axle load 4t
• maximum axle load for a two-axle bogie 3t
• maximum axle load for a three-axle bogie 2t

There is a suggestion to write:

• maxweight=5
• maxaxleload=4
• maxbogieweight:2=3
• maxbogieweight:3=2

-- Corsa5 (talk) 08:59, 28 August 2021 (UTC)

tri-axle load limits

Thanks @Minh Nguyen: for adding the AU sign in https://wiki.openstreetmap.org/w/index.php?title=Key%3Amaxbogieweight&diff=1876046&oldid=1873651 showing that our load limit (max weight) signs may list a single axle, tandem axle and tri-axle weight. My understanding is that "bogie" means two or more wheelsets, however since maxbogieweight=* has been defined as "tandem axle group" I think we can go with,

• single axle: maxaxleload=*
• tandem axle: maxbogieweight=*
• tri-axle: maxtriaxleweight=*

Aharvey (talk) 23:47, 9 March 2026 (UTC)

I see @Corsa5: already suggested maxbogieweight:2=* and maxbogieweight:3=* for tandem axle and tri-axle.
I also realised that at Australian Tagging Guidelines/Road Signage#R6-17 I suggested maxweight:conditional=*. Aharvey (talk) 00:33, 10 March 2026 (UTC)

@Aharvey: In the U.S., we distinguish axle groups as tandem for two and tridem for three. But as long as we stick to the British term "bogie", this article is probably just defined too narrowly. :2 and :3 would be confusing for mappers and editors, as we already have some tagging schemes like panoramax=* that rely on indexed subkeys for multiple value lists. maxbogieweight:conditional=* would give us more flexibility. Whereas axles in maxweight:conditional=* means the number of axles total, axles in maxbogieweight:conditional=* can mean the number of axles in an axle group, with bogies for any restriction on the number of axles groups overall. Minh Nguyễn ^💬 17:44, 26 March 2026 (UTC)