The old Arab quarter of the city of Granada in Spain is called the Albaicin (or Albayzin) and is a romantic hillside district with narrow winding streets and medieval Moorish structures. The area is very steep and when we were there it seemed somewhat deserted - probably only because it was high noon on a very hot summer day.
We found an explanation in English.
According to the SOS Albaicin website, the residents are protesting measures by the mayor that suppress public transportation to the area and redirect traffic circulation on the main thoroughfare. Their interest is in preserving the historic quarter.