Tag:hgv=no_turnaround

hgv = 
Description
Marks object, typically road, marked officially as having no turn around at the end for large vehicles
Used on these elements
may be used on nodesmay be used on waysmay be used on areas (and multipolygon relations)should not be used on relations (except multipolygon relations)
Useful combination
Status: de facto

A legal right of way exists, but usage is officially discouraged (e.g., HGVs may back up into the road, or back out again). Only if marked by a traffic sign (subjective otherwise).

Germany has roads marked with "Keine Wendemöglichkeit" signs and hgv= is a suitable tagging for that.

Obviously, it can be also used in other countries that have an official signage which mark dead end roads, or roads with traffic filters like bollards, as having no turnaround at the end. HGV vehicles driving into these roads are required to back out again, without making it illegal.

References

See also