Hi HosseyNJF, thanks for reaching out and providing your local knowledge! After doing further investigation, it appears aerial imagery does support the existence of concrete roadblocks. Might I recommend applying a barrier=jersey_barrier tag (https://wiki.openstreetmap.org/wiki/Tag:barrier=jersey_barrier) to the appropriate nodes on the connecting tertiary roads rather than changing the classification to ‘highway=footway’? This way vehicles can still drive into those roads, but not through the blocking barriers. I look forward to hearing back from you!