 In contrast, because officials from the Cairo Cleaning and Beautification Authority (CCBA) regarded the Zabbaleen recycling methods as unhygienic and backwards, they were optimistic about the process and hoped for a positive impact on Cairo's environment.However, because the mechanized equipment of the foreign companies are too large for the streets of Cairo, citizens were required to bring their trash to designated collection centers and bins, which were not always placed in easily accessible locations.Therefore, residents preferred to continue to have their trash picked up from their doors by the Zabbaleen, who were able to come directly to their doors even if their homes were located in narrow alleys.