The last couple of months have given us so many unique experiences which we never thought we would have during the course of our Industrial Engineering & Management degree. Working on our project on understanding networks in solid waste management has been an eye opener on so many levels. We are slowly, but surely coming to terms with the complexity of the garbage issue at hand in Bangalore.
The complete process of waste management is a complex one involving multiple systems and sub-systems. Through our project we aim to apply concepts and tools of Industrial Engineering like Network Optimization, Supply Chain Management and Simulation Modeling to analyze ways improve the process and provide a more systematic approach to addressing the problem. Our primary area of work is the optimization of transportation network in solid waste management which includes push carts, collection autos and trucks. We also aim to create a problem statement of the garbage situation through our findings throughout the project.
The garbage problem in Bangalore has become more evident since the irregular functioning of the three main garbage landfills leading to pile up of garbage at various points mainly on roads and empty sites. The coordination and organization of this process is poor and leads to pile-up of garbage at these pick up points whose location is chosen without appropriate planning. There is no synchronization or time management in the movement of the collection vehicles till the secondary point, and also of the trucks from this point to the landfills. Through the course of the project so far, we have interacted with the various stakeholders associated with the problem. From the Pourakarmikas to the officials to residents, we have tried to view the problem from various perspectives. Through these interactions we have obtained quite a few interesting details and insights.
The basic process of collection consists of dood-to-door waste collection by the auto-rickshaws. The autos consist of 1 driver and 2-3 collectors. Once the auto-rickshaws are done collecting, they go to one of the truck’s pick-up points and load the waste into the trucks. The dry-leaves and other waste left on the roads are collected by the Pourakarmikas using push-carts and those too are loaded into the trucks at the pick-up points.
In our first field observation at ward 19 (Sanjaynagar), in a casual talk with the driver of the garbage auto, we were told that no instructions were given to the drivers on what route he should take to complete the area assigned to him. We followed the auto and accompanied the collectors through the process. The BBMP had laid out a directive stating the incorporation of waste segregation at every house (into wet and dry waste). Our presence gave them a sense of empowerment as the residents took the collectors’ pleas to segregate the waste (as instructed by their supervisors), more seriously with us going along with them. Most residents on the other hand found the exercise of segregation pointless as they assume that all kinds of waste were mixed eventually in the garbage truck/compactor.
In another such chat with the same garbage truck driver, he mentioned his inability to cover all points of collection on certain days. The reason being, the truck overloads well before they could cover 75% of garbage pick-up points, at times leaving a pile of foul garbage until the next day/ trip. We also found differences in the actual number of vehicles (auto-rickshaws, trucks and push-carts) assigned for Solid Waste Management (SWM) in Sanjaynagar ward and the data provided in the BBMP SWM monitoring file.
These are few of many details and instances we have observed and recorded through the course of our work in Sanjaynagar ward. We hope to understand the problem in a deeper sense in the days to come.