applying street cleaning: modeling to represent monitored results caroline burger, p.e. earth tech,...
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Applying Street Cleaning:Applying Street Cleaning:
Modeling to Represent Monitored Modeling to Represent Monitored ResultsResults
Caroline Burger, P.E.Caroline Burger, P.E.Earth Tech, Inc.Earth Tech, Inc.
Factors to ConsiderFactors to Consider5-year Rainfall Files
Winter Season Date Range
Street Texture
Street Cleaning Frequency
Type of Street Cleaner
Street Cleaner Productivity
Parking Density
Parking Controls
Rainfall DataRainfall Data
Duluth
Green Bay
MilwaukeeMadison
Minneapolis
•Use 5-year rainfall files
•Use Winter Season Date Range
•Parameter files and Winter Season Information can be found on the USGS website
Street Cleaning FrequencyStreet Cleaning Frequency
One Pass Every Two Weeks
One Pass Every Week
Type of Street CleanerType of Street Cleaner
Vacuum Assisted & Regenerative Air Are Modeled the SameVacuum Assisted & Regenerative Air Are Modeled the Same
Mechanical Broom Regenerative Air
Vacuum Assisted
Street Cleaner ProductivityStreet Cleaner Productivity
Use “1. Coefficients based on street texture, parking density, and parking controls”
Parking DensitiesParking Densities
None: No ParkingLight: 1 or 2 cars per blockMedium: Cars in approx. 50% of available parkingExtensive: Cars in more than 90% of available parking
Medium
None
Extensive
Parking ControlsParking Controls
Can the Street Cleaner Reach the Curb?If cars are not allowed to park on the street during cleaning times, or if streets are cleaned when cars are usually not on the streets, the answer is “yes”.
AlleysAlleys
Note:Alleys are considered streets in the SLU files.
The model assumes street cleaning is applied to alleys.
Therefore, if you do not want to model alleys as being cleaned, the alleys must be separated in the .dat file.
Street Cleaning EfficienciesStreet Cleaning Efficiencies
Type of Land Use
Parking Density
Broom Street
Cleaner
Vacuum Assisted Cleaner
Med. Den. Res.
Light 7% 18%
Strip Comm. None 10% 20%
Shopping Ctr.
None 3% 6%
Land UseParking Density
With Parking Controls
Without Parking Controls
Med. Den. Res.
Med. 20% 8%
Strip Com. Med. 19% 8%
Downtown Ext. 17% 13%
Street Cleaning EfficienciesStreet Cleaning EfficienciesVacuum Assisted Street Cleaner
Frequency: 1 / week
Cleaning Frequency
Broom Street Cleaner
Vacuum Assisted Street Cleaner
Light Parking
Medium
Parking
Light Parking
Medium
Parking1 \ Month 3% 2% 8% 7%
1st 6 weeks – 1 \ Week; Remaining Season - 1 \ Month
9% 7% 17% 14%
1 \ Week 9% 7% 22% 18%
Street Cleaning EfficienciesStreet Cleaning EfficienciesMedium Density Residential No Alleys Land Use
Typical Community-Wide ResultsTypical Community-Wide Results
Mechanical Broom = 3 – 6 %
Vacuum Assisted = 5 – 10 %
Street Cleaning Program
Downtown cleaned 1 / week
Remainder of city cleaned 1 / 2 weeks or 1 / month
Parking densities and parking controls varied based on land use
““Spring Cleaning”Spring Cleaning”
Aggressive Spring Cleaning Schedule
Once per week for at least 6 weeks
Schedule returns to normal after “Spring Clean-Up”
Start as soon as snow melts
Clean Entire community
Vacuum Assisted Cleaner
Average reduction 12 - 16 % community-wide
Questions?Questions?
Applying Street CleaningApplying Street CleaningStreet Cleaning Form
Applying Street CleaningApplying Street CleaningWinter Season Date Range Activates Calibrated Coefficients
Applying Street CleaningApplying Street CleaningStreet Source Area Only Output
Applying Street CleaningApplying Street CleaningDowntown SLU File with Street Cleaning
Applying Street CleaningApplying Street CleaningDowntown SLU File with Street Cleaning - Output
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