Parking Generation Update: The Numbers - Institute of ...

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Heath Club Hourly Variation 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 7:00 AM 8 9 10 11 12 Noon 1:00 PM 2 3 4 5 6 7 8 9 Beyond Suburban Sites. This update provides, for limited land uses where data exists, information about variation in parking demand for different area types (suburban, suburban center, central business district, central city-not downtown, rural) and pricing of parking. While more data is needed in this area, this begins a process for encouraging future data collection. Mixed-use Sites: To encourage understanding of sites where multiple land uses are provided, mixed-use site case studies are now documented. While only seven sites were available, greater data collection in the future will provide a case study resource similar to pass-by trip in Trip Generation. Shared Parking. Provision of the hourly variation in parking demand is the major difference between this update and the prior versions of Parking Generation. Tables are provided that compare the peak hour of parking demand observation to the other hours of the day on weekdays and weekends (where data are available). The Urban Land Institute is planning an update to their Shared Parking report building from the Parking Generation findings. Land Use Differentiation: For three land use groups (fast food restaurants, athletic clubs and senior housing) more detailed differentiation between the land use types was developed. For example, for fast food, specific data for hamburger, taco, pizza stores was provided. Senior housing has been divided into land use categories that are standard for that industry. Additionally, athletic clubs have been divided into the various types commonly found – member athletic clubs, fitness/health clubs, racquet clubs, recreational centers and tennis courts.
Call for Data Additional parking demand data is needed for numerous land use categories. An easy to use Excel spreadsheet for parking data is available to be downloaded from the ITE web site (www.ite.org/surveys/parkingoccupancy/parking_basicform.xls). The Parking Generation Update Committee identified the following priority areas for data collection: • Grocery Stores (examples include small - 7/11; medium - IGA; and large-Albertson's, Safeway) • Elderly Housing (senior housing - attached or detached, nursing homes, assisted living, congregate care, continuing care retirement communities) • Large Cinemas (16 or more screens) • Big Box Retail (examples include Costco,Wal-Mart, Home Depot, Lowe’s, Target, Toys-r-us, K-Mart, Sports Authority, Borders, Staples,....) • Restaurants (quality restaurants to high turnover to fast food) • Civic Facilities (library, city hall, recreation centers, fire/police stations) • Warehouses Conclusion The update to Parking Generation provides a powerful new tool to better understand parking demand. On the other hand, it provides information that can easily be misinterpreted without good professional judgment. Having reviewed every piece of information summarized in this report, if users do not reflect on the unique characteristics and factors that can affect parking demand site by site or the need for additional data – this report will not help them. Many times the complexity of parking demand requires the understanding of professionals experienced with analyzing parking characteristics. This update provides a starting point to better understanding of the characteristics that affect parking demand (area type, transit services, demand management strategies, pricing, shared parking) and encourages more surveys to verify data in this report. Ransford S. McCourt, PE, PTOE is a principal of DKS Associates in Portland, Oregon. He manages the DKS offices in Portland, Seattle, Washington and Phoenix, Arizona. He chairs the ITE Parking Generation Update Committee and is the Vice Chair of the ITE Parking Council. In 2003-2004 he will be President of ITE District 6.
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