Parking Generation Analysis
Storrs Center
CE 2710
January 2014
Parking Facility Types
On-street parking facilities:
Parking alongside the curb
Off-street parking facilities:
Private vs. Public
Surface lots vs. garages
Self-parking vs. Valet-parking
How much parking is needed for a new development?
• Common Method:
– Demand Estimation
– Building Parking
The Institute of Transportation Engineers
Area Amount
of Each
Land Use
Estimation
Parking
Requirements
Land Use data From
Master Plan
ITE :Parking
Rate for Each
Land Use
Parking Generation Manual4th Edition 2010
• Parking generation data for 106 land uses
Land Use
Code
Port and Terminal
0
Industrial/Agriculture
100
Residential
200
Lodging
300
Recreational
400
Institutional
500
Medical
600
Office
700
Retail
800
Services
900
Parking Generation Manual4th Edition 2010
• Contains:
– average rates,
– ranges of rates,
– 85th percentile rates,
– 33rd percentile rates,
– and equations (regression) in some cases.
Elements of the Manual
• Land Use: 106 land use ( recreational,
residential, shopping areas,….)
• Units: Seats, Square Feet,…
• Time in the week: Weekday/Weekend
• Location: Urban/Suburban/Rural
Example
Limitations
• Single Land Use
• Inattention other transportation alternatives
• Transferability: Samples are gathered by numerous
individuals from a range of locations, years, and time
periods
• Limited data for some land uses : At least for more
than 30 land uses the sample size is lower than 4
samples.
Potential Consequences
• Oversized and Unused Parkings
• Discourage Walking and
Biking
• Create Storm Water Problem
• Increase Costs for New Businesses
STORRS CENTER PARKING DEMAND ANALYSIS
Pre Development Parking Conditions
Land Use Data
Land Use
Phase 1 A
Area (SF)
General Residential
Phase 1 B
Unit
Area (SF)
127
Unit
287
Restaurant: Sit Down
8,895
8,895
Restaurant: Fast Food
8,055
9,910
Office
5,007
5,007
Community Shopping
5,038
45,918
ITE Suggestions
85th Percentile
Code
Unit
Weekday
Weekend
General Residential
224
Dwelling
Unit
1.76
1.76
Restaurant: Sit Down
932
KSF
6.37
6.37
Restaurant: Fast Food
933
KSF
12.33
11.25
Office
701
KSF
2.98
0.45
Community Shopping
820
KSF
5.05
4.94
ITE Suggestions
Average
Code
Unit
Weekday
Weekend
General Residential
224
Dwelling
Unit
1.62
1.62
Restaurant: Sit Down
932
KSF
5.55
5.55
Restaurant: Fast Food
933
KSF
8.2
7.4
Office
701
KSF
2.47
0.4
Community Shopping
820
KSF
3.78
3.05