ITE & IPMI Open Joint Call for Parking Data to Update Landmark Parking Generation Manual 

Data collection open through June 1, 2023.

The Institute for Transportation Engineers (ITE) and the International Parking & Mobility Institute (IPMI) opened the joint Call for Data to revise ITE’s landmark publication, the Parking Generation Manual (PGM).

The manual supports parking requirements and decision-making throughout the country and is heavily referenced in zoning codes that specify parking requirements for land uses. This effort will update and modernize the critical baseline data set used in the PGM.

All data is held in the strictest confidentiality and will only be released in aggregate; specific sites and data sets are not available or identifiable in the final publications and resources. For more information on how data is aggregated and utilized, reference ITE’s Frequently Asked Questions.

Read the full press release about the strategic partnership.

About the Call for Data


The joint Call for Data sources both pre- and post-pandemic data sets including but not limited to residential, hospital, municipal, airport, and other land uses.    Data has previously included off-street parking counts, and the new edition will include additional on-street parking data as well. There has been a previous preponderance of data on suburban locales versus more urban settings, and in this edition ITE seeks to achieve a balance of both to make the data more meaningful as it is applied depending on location. 

The call will utilize the new Alliance for Parking Data Standards, which will streamline the submission process, make the data more accessible, and maximize utilization by owners and operators of parking assets worldwide. To download the latest documentation release, visit the APDS website.

Knowledge and use of the APDS specifications is not required to submit your parking data.  Questions about data sets, process, and data collection forms? Contact us. 


Requested Participants and Data Sets


The Call for Data is specifically requesting parking data for both pre-pandemic and post-pandemic time periods:

  • January 2019 - December 2019
  • January 2020 - December 2020
  • January 2021 - December 2021
  • January 2022- December 2022

Data may be submitted for single day time period for specific land uses or include week, month, or annual data.  Data can be shared from a single site, or multiple sites at one location, and may also be shared in APDS formats.

IPMI and ITE are requesting data from the industry on a broad scale, including but not limited to:

  • Cities, municipalities and public agencies 
  • University and academic institutions 
  • Hospitals and healthcare organizations
  • Residential property owners and managers of apartments and condominiums
  • Airports and transit hubs 
  • Consultants
  • Suppliers
  • and all other listed market and land-use segments.

How to Submit Parking Data Sets

Owners and Operators


If you would like to submit larger amounts of parking data provided in a different format, please contact Rachel Yoka at to review format and data provided.

Consultants, Planners, and Engineers


If you would like to submit completed studies to supplement the data collection, please email them to Rachel Yoka at to review format and data provided.

Suppliers and Services Companies


If you would like to submit larger amounts of parking data provided in a different format, please contact Rachel Yoka at to review format and data provided.