The Florida Trucking Manual [1] (page 10) explains the categories thus: _The maximum allowable weight is listed in tons beside the silhouette for each of the three classes of vehicles._
_The SINGLE-UNIT TRUCK silhouette includes all straight trucks, cranes, and other single-unit special mobile equipment regardless of the number of axles._ _The TRUCK TRACTOR SEMI-TRAILER silhouette includes all truck tractor combinations regardless of the number of axles._ _The SINGLE-UNIT TRUCK WITH ONE TRAILER includes all MAXI-CUBE and TANDEM TRAILER combinations regardless of the number of axles._ So it is about the configuration of the vehicle and not about the number of axles. As was mentioned by another poster, a ton here seems to be a "short ton", i.e. 2000 pounds (907kg), which is not the normal imperial ton of 2240 pounds (1016kg) or the metric ton of 1000kg. Perhaps the unit should be explicitly mentioned in the value (irrespective of which tag is used), e.g. "25 st". //colin [1] http://www.flhsmv.gov/fhp/cve/2013TruckingManual.pdf On 2015-12-31 14:51, Colin Smale wrote: > Looking at the photo in the original post, it looks like the categories are a > bit more specific than "hgv" - possibly articulated/semitrailers vs. drawbar > trailers, possibly based on the number of axles. What is the proper/legal > defintion of the vehicle categories that the symbols represent? > > Don't know if such a thing exists in the US but in Europe we sometimes see a > limit on the weight-per-axle. Close-coupled axles (with minimal distance > between the wheels/axles) are counted as a single axle. > > //colin > > On 2015-12-31 14:30, Martin Koppenhoefer wrote: > > sent from a phone > > Am 30.12.2015 um 19:26 schrieb Jack Burke <burke...@gmail.com>: > > What's the right way to specify maxweight when the weight limit sign has > different values for different vehicles? Just use the highest value shown? > > you should specify the maxweight for all vehicles distinctly, e.g. > maxweight:hgv= > maxweight:bus= > > http://taginfo.osm.org/keys/maxweight%3Ahgv > > cheers, > Martin > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
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