Trip and Parking Generation

Call for Data—Trip Generation 10th Edition
Help Shape the Future of Trip Generation-Submit Data through ITE's New Data Collection Web Site

ITE needs your help!  We are taking two major steps forward regarding the upcoming 10th edition of the ITE Trip Generation Manual and your input is needed.  For the first time, there will be the inclusion of an urban, people-based approach in this upcoming edition. The significance of this already valuable resource will increase by differentiating among data collected for urban, suburban, and rural sites. Where possible, it will provide vehicular and person trip generation data by travel mode. Data is needed to help expand this resource to include this valuable new information.

Also new for the 10th edition is that ITE has responded to member requests to make data sharing easier through the electronic submission of data. You can now submit data online at

Your Participation is Critical to Success ITE relies heavily on the voluntary submittal of data from the transportation community to produce this valuable reference. The 10th edition of the Trip Generation Manual will be more comprehensive than ever before and a foundational building block to creating the next generation of Trip Generation products. Therefore, your participation is critical for ITE to improve this resource and to ensure delivery of the most accurate and up-to-date information available.

ITE is accepting trip generation data for all land-use types.  We particularly encourage submittal of data for the following land uses affordable housing; age-targeted residential development; co-housing; cold storage warehouse; college dormitory/off-campus student housing; data center; discount supermarket; drive-in bank; duplex residential unit; fast casual restaurant; fulfillment center; garden center; high-cube warehouse; marijuana dispensary; membership warehouse club; micro-apartments; mini-warehouse; office building (including employment density);outpatient surgical facility; parcel hub; self-storage facility; senior adult housing facility; specialty retail; stand-alone specialty food (coffee shop, bagel shop, donut and sandwich shop, etc.); super convenience market/service station; super grocery stores; and zero parking apartments.

Data are also needed for all types of mixed-use sites such as a multi-story apartment with 1st-floor commercial space or a convenience store, gas station, and fast-food restaurant combination. ITE also asks that you submit any data collected on pass-by and diverted trips and on trip length averages and distribution. These data will also be compiled, updated, and reported as conclusive findings are identified.

To submit data online go to For those who prefer, hard copy Trip Generation Data Collection Forms are also available. The deadline for submission for inclusion in the 10th Edition is December 15, 2016. Data submitted after this deadline will be considered for a future edition.

Call for Data—For Future Editions of ITE’s Parking Generation

ITE continues to collect data for upcoming editions of its widely used Informational Report, Parking Generation. To produce future editions of this valuable reference, ITE relies on the voluntary submittal of data from the transportation community. We are interested in obtaining data for all land uses. We need your help to continue to improve the value of this resource. Presently, the following land uses are of particular interest: mini-warehouse, high-cube warehouse, senior adult housing, assisted living, congregate care facility, timeshare, convention center, arena, casino/video lottery establishment, outdoor athletic field, mosque, small office building, free-standing discount store/superstore (with and without garden center), sporting goods superstore, home improvement superstore, bed and linen superstore, department store, drive-in bank, hair salon, copy, print and express ship store, coffee/donut shop and bread/donut/bagel shop.

Instructions for data collection and data collection forms can be found here and also in appendix C of Parking Generation,4th edition. Data for this publication are being collected continually. Please submit data to Lisa Fontana Tierney, Traffic Engineering Senior Director, ITE, 1627 Eye Street, NW, Suite 600, Washington, DC 20006 USA; fax to +1 202-785-0609 or email

Trip Generation

Parking Generation


Institute of Transportation Engineers
1627 Eye Street, NW, Suite 600 | Washington, DC 20006 USA
Telephone: +1 202-785-0060 | Fax: +1 202-785-0609

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