The area is difficult to access with traditional waste trucks. It hosts a large number of bars and restaurants, and has an intense commercial activity. It is a high density area. The Envac system provide a solution to the waste handling challenges of the area.
The system consists of 384 valves discharge into two different fractions, packaging and rest, collecting over 15 tons per day.
The length of the entire network is 12.5 km, giving an idea of the magnitude of the system.
The work was adjudicated in the year 1997 and the system taken into operation in 1999.