Analysis of Factors Affecting Truck Parking Violation Frequency in Urban Areas

While nearly every driver can recall his/her experiences with frustrations caused by illegally parked delivery or service vehicles, there have not been many studies that actually examined their impacts. A study by Han et al estimated that conservatively, illegal parking of parcel delivery vehicles is the third leading cause of urban non-recurring (i.e. not due to traffic volume) congestion behind crashes and
construction. A study by Pivo is the only example to our knowledge that examined the effects of built environment on truck operations. A recent study in New York City developed models for truck parking demand and curb space availability using tax map and property information data. While it is encouraging to see an increased interest in the topic of truck-related conflicts in urban areas, many knowledge gaps still remain.

Principal Investigator(s):

Kazuya Kawamura, PhD
P.S. Sriraj, PhD


Kazuya Kawamura, PhD
P.S. Sriraj, PhD
Havan Raj Surat
Martin Menninger




As an exploratory step toward addressing truck parking problems in urban areas, this study analyzed truck parking citation data in Chicago to identify factors that affect concentration of high density of violations.


The study strives to identify built environment and socioeconomic factors that are associated with the frequency of truck parking violations in Chicago. Parking citation data are effective indicators of truck parking problems and hot spots because they directly capture the presence of parking problems. One of the issues that arise with the use of parking ticket data is the potential variability in the level of enforcement effort. In this study, we use the density of parking violations given to passenger vehicles to account for the enforcement intensity.

Expected Results or Products:

This study examined the relationship between spatial distribution/concentration of parking violations involving trucks and various socioeconomic and built environment factors. We found that nearly 40% of parking citations examined in this study can be attributed to truck bans, either for specific types of roads or designated neighborhoods. While the bans allow trucks to be parked during the loading and unloading
activities, delivery schedules, often dictated by the receiver, require trucks to do a lot of waiting between deliveries. It may be worthwhile to create an on-line map of the streets and neighborhoods with truck bans that the drivers can use to find the areas where they can do the waiting legally.


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P.S. Sriraj
Urban Transportation Center
University of Illinois at Chicago
412 South Peoria Street, Suite 340
Chicago, IL 60607
Voice: (312) 413-7568
Fax: (312) 413-0006


Center for Urban Transportation Research (CUTR)



National Center for Freight and Infrastructure Research and Education (CFIRE)