Solid Waste Collection Zones Optimization and Implementation

Transcription

1 Solid Waste Collection Zones Optimization and Ravi Kadambala Abdul Mulla Saleh Julio Brea CDM Smith & City of Homestead

2 Presentation Outline Background Objective Approach Data Collection and Assumptions Modeling and Optimization Results and Analysis Plan Conclusions Lessons Learned

3 Background The City of Homestead Public Works and Engineering Department, Solid Waste Division (SWD), is responsible for collection and management of residential municipal solid waste. Garbage twice per week Recycling Waste and bulky waste twice a month

4 Existing Garbage Collection System Twelve (12) Zones Twice a week from each zone. Either Monday-Thursday Or Tuesday-Friday.

5 Existing Bulky Waste Collection System Eight (8) Zones Twice a month from each zone.

6 Existing Recycling Waste Collection System Five (1) Zones Twice a month from each zone. 5

7 Background The City passed an ordinance to increase collection of: Recycling and bulky waste collection from twice a month to once a week. Maintain garbage collection to twice a week

8 Objective Increase recycling and bulky waste collection from twice a month to once a week Coincide with existing garbage collection days Bulky waste collection to alternate each week (early/late pick up) Optimize bulky and recycling waste zones without additional staff/equipment Develop effective public communication plan Provide staff training for successful implementation of new collection zones effective January 2, Solid Collection Routes Optimization and

9 Approach Garbage zones were modeled to determine time required for each zone.

10 Approach Based on Garbage zones modeling results: The City was divided into four (4) proposed zones (identified by garbage zones) for recycling /bulky waste collection.

11 Data Collection and Modeling Parameters Number and type of collection equipment Collection trucks, cranes, haul trucks, etc. Size and capacity of collection equipment. Personnel available for each type of waste collection. Average amount of waste generated per week per household Garbage Recycling Waste Bulky waste Average pick-up time from waste collection equipment for the various types of waste Average speed of a waste collection equipment

12 Summary of Personal and Collection Equipment Type of Collection Crew Equipment Capacity Garbage Six (6) crews on different zones Six (6) Auto side loaders 33 cubic yard (5 trucks) Recycling Two (2) crews on different zones Two (2) Auto side loaders 28 cubic yard ( 1 truck) 33 cubic yard (2 trucks) Bulky waste Three (3) crews on different zones (Each crew has one crane and two dump trucks) Three (3) cranes and six (6) dump trucks 24 cubic yard (6 trucks)

13 Field Observation 96 Gallons Super Cans for Garbage and Recycling Waste Collection

14 Auto-Side Loader for Garbage and Recycling Waste Collection

15 Auto-Side Loader for Recycling Waste Collection

16 Dump Truck for Bulky Waste Collection

17 Crane for Bulky Waste Collection

18 Crane and Dump Truck for Bulky Waste Collection

19 Field Observation Average pick-up time Garbage from an auto-side loader was approximately 12 seconds Recycling waste from an auto-side loader was approximately 12 seconds Bulky waste using a crane and a dump truck was 1 minute Assumptions Every third (3) house generates recycling waste on a given week Every tenth (10) house generates bulky waste on a given week

20 Waste Generated by Household per Week Garbage Generated by Household (twice a week) 13.6 Pounds Recycling Generated by Household per week 4.1 Pounds Bulky Waste Generated by Household per week 15.6 Pounds It was assumed that pick-up point for recycling waste was every 3 rd house and the pick-up point for bulky waste was every 10 th house. Revised Waste Generated per Pick-up Point per Week Recycling Waste Generated per Pick-up Point per Week 4.11 x 3 = 12 Pounds Bulky Waste Generated per Pick-up Point per Week x 10 = 156 Pounds

21 Model Development using FleetRoute FleetRoute is a GIS-based Route software Optimizes and identifies most efficient routes Determines waste pick-up time for various zones Maximizes productivity of vehicles Can integrate easily new customers into routes to facilitate expansion

22 Existing Garbage Zones

23 Existing Garbage Zones

24 Existing Garbage Zones

25 Existing Garbage Zones

26 Existing Garbage Zones

27 Proposed Recycling/Bulky waste Zones

28 Proposed Recycling/Bulky waste Zones

29 Optimization of Recycling Waste Zones

30 Optimization of Bulky Waste Zones

31 Development of Final GIS Maps

32 Development of Final Schedule

33 Plan Public Communications Plan Early residents communication, via bill inserts Followed by post cards and radio adds Magnet calendar for each four zones with collection schedules Hotline to any questions Staff Training Two training sessions with the City staff Supervised implementation for the first week

34 Conclusions Lessons Learned Significant effort to prepare GIS maps QA/QC of data is critical part of the modeling Early communication with residents helps Training and preparation is key for implementation Allow adequate time (4-5 months) City staff played a vital role in the project team

35 Questions

36 Thank you