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Environmental Waste Services Dual Arm –Single Pass Alley Collection. Plano Statistics. Location – Collin County Tx. Plano Population – 268,000 1990 - 128,713 2000 - 222,030 2010 - 263,000 Automated collection Services Provided by EWS Residential refuse weekly collection - PowerPoint PPT Presentation
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Environmental Waste ServicesEnvironmental Waste ServicesDual Arm –Single Pass Alley Dual Arm –Single Pass Alley
CollectionCollection
• Location – Collin County Tx.
• Plano Population – 268,000 1990 - 128,713 2000 - 222,030 2010 - 263,000
• Automated collection Services Provided by EWS
Residential refuse weekly collection
Residential recycle bi-weekly collection
• Residential customers serviced 70,300
• Switched to automated collections in 1995
• 15 daily trash routes
• 10 bi-weekly recycle routes
• 75% of city has collection point in the alley
• Home construction developed on alley access for
majority of residences
Biggest factor in looking at the dual arm collection
• 3 separate demos in 2010 & 2011On Route Mileage – In the alley
Fuel Consumption
Driver Productivity
Dual ArmSingle Pass
Double Pass Variance
272.2 Gals 285.6 Gals 13.4 Gals
Dual ArmSingle Pass
Double Pass Variance
94 miles 186 miles 92 miles
Resident education
Introduction letter mailed to residents in pilot areas
Cart placement instructions emphasized Driver Cart Tags
Quarterly Newsletter
Single pass service explained – Supervisor in the
fieldResponding to resident questions
Addressing non-compliance
April 2012 – two dual armed trucks begin
collections
One trash collection route
5,491 homes serviced weekly (4 10hr days)
Incentive driver – participated in initial demos
One recycle collection route - Bi –Weekly
Service
7,000 homes serviced every 2 weeks
New driver did not participate in demos.
TRASH COMPARISONcarts miles on route weight carts per avg cart avg load Loads
TRASH serviced driven time minute weight weightDual Arm 22 Yd 48,466 1,238 16,438 1,326,000 2.95 27.36 13,670 97 621.4Single Arm 22 Yd 42,327 1,368 16,946 1,235,960 2.50 29.20 13,290 93 604.1VARIANCE 6139 -130 -507.4 90,040 0.45 -1.84 380
14.50% -9.50% -2.99% 7.29% 18.04% -6.30% 2.86%
RECYCLE COMPARISON lbs percarts miles on route weight carts per avg cart avg load cu yd
RECYCLE serviced driven time minute weight weightDual Arm 22 Yd 26,864 465 16,125 667,740 1.67 24.86 8,196 91 372.5Single Arm 24 Yd 26,791 826 17,876 672,360 1.50 25.10 9,338 72 389.1
VARIANCE 73 -361 -1750.8 -4620 0.1673 -0.2402 -1142 -170.27% -43.70% -9.79% -0.69% 11.16% -0.96% -12.23% -4.25%
Miles per gallon 10% Improvement
Fuel $ Per mile 14% Improveme
nt Total Cost Operation 16% Improveme
nt
• Safety concerns – 2012 resultsSafety concerns with servicing carts on the
opposite side of the cab and not in direct line of sight, relying on camera system and mirrors most of the time.Two property damage incidents in first 30 days. No damage or safety issues in last 5 monthsShadowing on video screen limits visibility.
Camera angle adjusted & improved visibilityThe mental awareness required to service both
sides of the alley (activating joystick switch, observing both sides of alley and cart location) fatigue could lead to missed carts and/or accidents.
Increase # of homes serviced per hour per driver (daily route productivity). Forecasted reduction of overtime hours due to increasing the number of homes serviced per hour per driver.Advantage of single pass in the alley, reducing accident risk.
Elimination of median Rite of Way Truck (left side automated collection)Replacement cost $ 160K
Savings on street and alley repair – single pass reduces infrastructure wear and tearPlano Streets Dept. reports $200k in alley
repairs annually @ average $954 per job. If only 10% result of EWS vehicle damage = savings of $20k per year