Unable to answer "Are pedestrians forbidden to walk on this road without sidewalk here?" – Tertiary Road – way/1295678868 via StreetComplete 61.3:

Airport arrival/departure area...people&cars everywhere

Einbahnstrasse in Richtung Carretera de Teulada a Benimarco

osm.org/directions?engine=fossgis_osrm_car&route=37.983086%2C-1.132104%3B37.98298%2C-1.129862#map=19/37.983099/-1.130371&layers=N
No enruta hacia la entrada de los aparcamientos, en general. Tampoco desde la salida de los mismos.

"The restaurant closed definitively."
The place has gone or never existed. A CoMaps user reported that the POI was visible on the map (see snapshot date below), but was not found on the ground.
OSM snapshot date: 2025-08-22T03:20:49Z
POI has no name
POI types: building-address
#CoMaps android