SWZDI Home Projects Board of Directors Events

Work Zone Crash Characteristics

Status: Complete

Description: Since construction of most of the major highway networks in the United States has already been completed, the majority of current highway work includes maintenance and rehabilitation of those highways, during which work zones are generated. In these areas disruptions to regular traffic flow are inevitable and the safety of road users and highway workers is a major concern. In the U.S. for the past five years from 2002-2006, there were nearly 5,406 fatalities occurring in or near work zones. Among other reasons, this may be partly due to ineffective implementation of preventive measures at work zones and shows that more effort must be made in order to improve safety in work zones for both highway users and workers.

The primary objective of this study is to investigate work zone crash characteristics of states currently included in the Smart Work Zone Deployment Initiative (SWZDI). These are Iowa, Kansas, Missouri, Nebraska, and Wisconsin. Primary characteristics related to work zone crashes for individual and combined states were identified. An analysis of percentage-wise distributions was carried out for each variable based on different conditions. A cross classification of different variables was performed to find relationships between different variables using the Pearson chi-square test of independence methodology. At the end of the analysis, risk factors with respect to work zones were identified and possible countermeasures were suggested.

Report: Dissanayake_WZCrashChar.pdf 4.51 mb (published 2009)

State conducting research: Kansas

Vendor:

  • Kansas State University

Authors:

  • Dissanayake, Sunanda (Kansas State University)
  • Akepati, Sreekanth Reddy (Kansas State University)
Iowa State University does not discriminate on the basis of race, color, age, ethnicity, religion, national origin, pregnancy, sexual orientation, gender identity, genetic information, sex, marital status, disability, or status as a U.S. veteran. Inquiries regarding non-discrimination policies may be directed to Office of Equal Opportunity, Title IX/ADA Coordinator and Affirmative Action Officer, 3410 Beardshear Hall, 515 Morrill Road, Ames, Iowa 50011, Tel. 515 294-7612, Hotline: 515-294-1222, eooffice@iastate.edu.