highway lanes should really be int?

[francians]

Hello,

I was reading this wiki page:
​https://wiki.openstreetmap.org/wiki/Tag:highway%3Dpassing_place
that gives an example:

lanes=1.5
in JOSM it is an error...
Should wiki be discussed or JOSM validator relaxed?

Thanks for any information and help
Francesco

What steps will reproduce the problem?

1. draw a line
2. add highway=service + lanes=1.5
3. validate

What is the expected result?

warning? nothing?

What happens instead?

error: lanes should be positive int

Please provide any additional information below. Attach a screenshot if possible.

Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2020-04-06 02:17:07 +0200 (Mon, 06 Apr 2020)
Revision:16239
Build-Date:2020-04-06 00:18:43
URL:https://josm.openstreetmap.de/svn/trunk

Identification: JOSM/1.5 (16239 it) Linux Antergos Linux
Memory Usage: 351 MB / 3978 MB (139 MB allocated, but free)
Java version: 13.0.2+8, N/A, OpenJDK 64-Bit Server VM
Screen: :0.0 1920x1080
Maximum Screen Size: 1920x1080
Dataset consistency test: No problems found

Plugins:
+ OpeningHoursEditor (35405)
+ PicLayer (35405)
+ apache-commons (35362)
+ apache-http (35092)
+ buildings_tools (35405)
+ ejml (35313)
+ geotools (35169)
+ jaxb (35092)
+ jna (35092)
+ jts (35122)
+ opendata (35405)
+ reverter (35409)
+ turnrestrictions (35405)
+ utilsplugin2 (35405)
+ wikipedia (1.1.3)

Tagging presets:
+ https://raw.githubusercontent.com/yopaseopor/traffic_signs_preset_JOSM/master/IT.zip

Map paint styles:
- https://josm.openstreetmap.de/josmfile?page=Styles/Coloured_Streets&zip=1

Validator rules:
+ https://josm.openstreetmap.de/josmfile?page=Rules/SuspiciousSwimming_Pool&zip=1
+ ${HOME}/git/map-this-way/MapThisWay.validator.mapcss

[stoecker]

It seems lane=1.5 as unwanted. See lanes description: To signify that a road has no lane markings, it is recommended to use an explicit tag like lane_markings=no or similar instead of an odd value for the lanes=* key like 0, 1.5 or none because the latter is ambiguous and may not be processed correctly by data consumers.

[skyper]

lanes=* with only positive integers is already ambiguous Without lane markings it is simply a guess. Using decimal numbers does not help at all. Better use width=* or narrow.