One-way road, except for buses and trolleybuses

Hi everyone,

Based on the attributes assigned to the following road segment, how can I determine that the segment is one-way for regular traffic but allows buses and trolleybuses to enter from both directions?


<osm version="0.6" generator="openstreetmap-cgimap 2.0.1 (3448771 spike-06.openstreetmap.org)" copyright="OpenStreetMap and contributors" attribution="http://www.openstreetmap.org/copyright" license="http://opendatacommons.org/licenses/odbl/1-0/">
<way id="135802397" visible="true" version="24" changeset="160494354" timestamp="2024-12-22T09:18:40Z" user="nslxndr" uid="8444896">
<nd ref="2910768761"/>
<nd ref="11733945835"/>
<nd ref="276373058"/>
<nd ref="5324574402"/>
<nd ref="1348503128"/>
<nd ref="2910768763"/>
<nd ref="10853413553"/>
<nd ref="651365959"/>
<nd ref="5338626352"/>
<nd ref="1510298316"/>
<nd ref="2528360818"/>
<nd ref="248947792"/>
<tag k="bicycle" v="use_sidepath"/>
<tag k="cables" v="2"/>
<tag k="foot" v="no"/>
<tag k="highway" v="tertiary"/>
<tag k="lanes" v="2"/>
<tag k="maxspeed" v="50"/>
<tag k="name" v="Kossuth utca"/>
<tag k="oneway" v="yes"/>
<tag k="sidewalk" v="no"/>
<tag k="source:maxspeed" v="HU:urban"/>
<tag k="surface" v="asphalt"/>
<tag k="trolley_wire" v="yes"/>
</way>
</osm>

Hi! oneway:bus=no is missing as far as I can tell. Without any further tags oneway=yes is for every mode of traffic.