Call for Data--ITE Parking Generation Manual, 6th Edition

ITE has initiated the process of developing the 6th Edition of its widely used informational report, Parking Generation Manual for release in the second half of 2023.

To produce this valuable reference, ITE relies heavily on the voluntary submittal of data from the transportation community. We need your help to continue to improve the value of this resource.

If you have conducted parking demand counts, we strongly urge you to consider submitting the data for inclusion in the 6th Edition. We will accept data for any land use in all settings, even those not included in Parking Generation Manual, 5th Edition or Trip Generation Manual, 11th Edition. Data that may include pre- and post-pandemic counts for the same site would be particularly helpful in assisting ITE in understanding the impacts COVID-19 has had on parking demand.

We particularly encourage submittal of data for the following land uses:

  • Residential—traditional and emerging types of residential development (such as affordable housing, age-targeted communities, co-housing, off-campus student apartments, micro-apartments, and zero parking apartments), with a focus on multifamily housing, including analysis based on the number of bedrooms
  • Office—small and large office buildings and office parks, including analysis of parking demand impacts of changing employment densities and changing work patterns such as office sharing, telecommuting and impacts of COVID-19
  • Retail - all types of retail uses, especially those for which parking demand could have been affected by the increasing popularity of on-line shopping and the impacts of COVID-19 (such as shopping center, shopping plaza, and strip retail plaza)
  • Hotel—hotel, all suites hotel, business hotel, motel, and resort hotel including analysis of impacts of with the emergence of Transportation Network Companies (i.e., Uber and Lyft)
  • Mixed Use—Mid-rise and high-rise residential with 1st-floor commercial
  • Medical—outpatient surgical facility, free-standing emergency room, clinics
  • Restaurants—fast casual restaurants, urban restaurants, and brewery tap rooms
  • Convenience Store/Gas Station
  • Marijuana Dispensary
  • High-Cube Fulfillment Centers and Transload, Parcel Hub, and Cold Storage Warehouses
  • Grocery Stores—particularly in urban areas
  • Schools—public, private, charter

Our data needs are described in the data collection forms on the ITE website (click here to access) and in Parking Generation Manual, 5th Edition. In addition to a continuous, multi-hour count of vehicle parking demand, ITE needs a complete description of the site characteristics (e.g., gross square footage, number of dwelling units, parking supply, parking cost) and its setting (street address is preferable, from which ITE can classify the site as general urban/suburban, dense multi-use urban, center city core, rural, or some other classification).

ITE encourages electronic data submittals. Data should be submitted in spreadsheet or PDF format to the email address listed below. Hard-copy reports can be submitted to the mailing address below.

Data for this publication are being collected continually. Please submit by February 28, 2023, to:

Lisa Fontana Tierney
Traffic Engineering Senior Director
1627 Eye Street, NW, Suite 550
Washington, DC 20006 USA

Or email to