harg
The access rights seem to be correct at this end of Alexandra Road. It's theoretically possible to map the individual signs, as at https://wiki.openstreetmap.org/wiki/Key:traffic_sign#As_a_separate_node which I think would be traffic_sign=no_entry;except_buses;GB:616,954 but I can find nowhere nearby where a traffic sign has been mapped and routers work on the access rights, not the signage.