Your note does not say what software has a problem to route along this road.

The example provided by Jakka above shows that several common routing engines (OSRM, Valhalla, GraphHopper) correctly route both pedestrians and cyclists through Bosdreef.

The tags on the road itself are fine, there are restrictions against vehicles (vehicle=no) but cyclists are explicitely granted access (bicycle=no) while pedestrians are also allowed here (the vehicle=no restriction does not apply to them).
https://www.openstreetmap.org/way/166418134

I see that the last significant tag change was on September 1, 2025; before that, access=no applied and would effectively prevent pedestrian routing.

Please provide more details to explain what app/software is unable to route here, or report the problem to the makers of that tool.  You may want to know that many popular apps, like OsmAnd, Organic Maps or CoMaps store a _local copy_ of OSM data on your device; make sure to update your local data to the newest version.

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