id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
20236	Add some validator rules (psv:lanes / lanes:psv etc..) access vs lane count information	anonymous	team	"I noticed cases when mappers are mixing access information (yes / designated) with numeric (1,2,3,...) amount of lane information

Check please 

Used access information when numeric values should be used for keys like:
lanes:psv, lanes:psv:forward, lanes:psv:backward
lanes:bus, lanes:bus:forward, lanes:bus:backward
lanes:hov, lanes:hov:forward, lanes:hov:backward


Used numeric values when access information should be used for keys like:

psv:lanes, psv:lanes:forward, psv:lanes:backward
bus:lanes, bus:lanes:forward, bus:lanes:backward
hov:lanes, hov:lanes:forward, hov:lanes:backward

See also:
https://wiki.openstreetmap.org/wiki/Key:lanes:psv#Possible_mix-up_option
https://overpass-turbo.eu/s/Y1D
https://wiki.openstreetmap.org/wiki/Key:psv:lanes#Possible_mix-up_option
https://overpass-turbo.eu/s/Y1F

Seems there is no validator messages, recent example changesets:
https://www.openstreetmap.org/changeset/95719119
https://www.openstreetmap.org/changeset/95503095 "	enhancement	new	normal		Core validator			lanes traffic_mode