OPTIMIZING THE SOLID WASTE COLLECTION SYSTEM OF ACSS USING LINEAR PROGRAMMING

1
OPTIMIZING THE SOLID WASTE COLLECTION SYSTEM OF
ACSS USING LINEAR PROGRAMMING GIS

• Mohammed Abdi Ali
• Term Project
• Fall 2000
• CE 394 GIS for Water Resources
• For additional information, visit
• http//www.ce.utexas.edu/stu/alima/home.html/swgis
  .htm

2
Topics of the Presentation

• Introduction
• ACSS
• Model formulation for Solid Waste Collection
  Optimization
• Use of GIS in solid waste management
• Objective of Term Project
• Data Acquisition Preparation
• Analysis Using Arc View GIS Spatial Analyst
• Analysis Using Arc View GIS Network Analyst
• Conclusion
• Acknowledgment

3
1. Introduction

• ACSS
• ½ of the Citys population solid waste service
  provider
• Provides service for commercial residential
  customer for both recyclable and disposable solid
  wastes.
• Provides both stationary container and hauled
  container services
• Offloading sites TDS, BFI, MRF,Hornsby Bend,
  COA Landfill
• Model of the optimization

• Input Data
• Source location
• Transportation street networks
• Transportation route length between pick-up
  locations
• Waste generation data at pickup location
• Location of offloading sites

• Analysis (optimization)
• Use linear modeling
• Minimize collection cost by considering the
  collection distance( route) and collection time
• Constraints regulation, traffic loads, and
  working hours, truck capacity, and other
  conditions. Types of collection system

• Output
• Optimum collection route
• Collection time
• Minimum cost

4

• Use of GIS in solid waste management
• 2. Objective of the Term Project
• Investigating the existing capacity of Arc View
  GIS tools for optimizing citys solid waste
  collection system
• To use the existing Arc View tools for
  preliminary route optimization
• 3. Computer Data Acquisition preparation
• Customer locations
• Austin City Street network
• Offloading and Office locations
• Identifying Commercial, residential and
  recyclable customers and hauled container
  collection system services

5
Commercial Customer, Offloading Office locations
6
4. Analysis Using Arc View Spatial Analyst

• The proximity analysis tools
• Procedures

7

• Proximity to disposal sites sample proximity
  analysis

8
5. Analysis Using Arc View GIS Network
AnalystThe Closest facility to Hauled Container
Collection System-Procedures
9
Out put of the Analysis
10
Sample Best Route AnalysisProcedures
11
Out of the Analysis
12
6. Conclusion

• The existing Spatial and Network analyst tools
  have limited application in Citys solid waste
  collection system optimization
• The existing tools are suitable for hauled
  container collection system than the stationary
  container system
• Improved tools or integration of additional
  linear models to include all the factors that may
  affect the collection system is necessary
• The existing tools may be helpful for locating
  transfer stations and landfill sites for new
  collection system
• Acknowledgment
• -City of Austin Solid Waste Service Office

13
THANKS TO GOD! DEC. 7
DEC. 7