Connected Vehicle Infrastructure University Transportation Center

Infrastructure Safety Assessment Using Connected Vehicle Data

Final Report

Abstract

Transportation agencies devote significant resources to analyzing crash data to identify “hot spots” – locations which experience larger than normal number of accidents. In many cases, upon identification of a hot spot, field investigation will point to a feature of the infrastructure that is contributing to the accidents. This feature may then be addressed specifically to improve safety. This method has been used for many years, and has proven to be effective. However, this method also has significant shortcomings. One of the key shortcomings is that the agency must wait for a large number of accidents to accumulate before a hot spot may be identified. In other words, this is a very reactive method that requires a number of crashes to occur before corrective action may be taken. Fortunately, there is a reason that crashes are most often referred to as “accidents”. They are infrequent, even at most hot spot locations. Thus, for a statistically significant accumulation of crashes to occur requires a rather long period of time. Furthermore, accurate capture of the location of crashes has long been a challenge in the transportation community. Police reports have been notoriously inaccurate in terms of crash location – although this is improving somewhat with the use of GPS. Thus, there is a need to develop a more proactive way to accurately identify “hot spots” – locations that require modifications to the transportation infrastructure to improve safety. The premise behind this project is that for every actual crash, there are numerous “near misses” where drivers’ take last second, extreme evasive action (such as swerving or skidding) to avoid a crash. These near misses are as significant as actual crashes in terms of pointing to safety problems. The challenge lies in identifying and compiling these near misses (since they are not formally reported). However, with vehicles in a connected vehicle environment, basic data will be available from the vehicle bus. If significant evasive maneuvers may be extracted from this data, along with the GPS location, this near miss data may be communicated to a transportation agency. This data may then be analyzed in a manner similar to current police crash reports to identify hot spots. This project will analyze data archived from the connected vehicle test best to extract “near miss” maneuvers. This data will then be analyzed to determine if hot spots may be identified. Then, finally, these hot spots will be examined in terms of traditional crash data to determine if there is a correlation – thus pointing to the potential of this approach.

Highlights

  • Utilized naturalistic driving data to classify crash and near-crash events with elements of the Basic Safety Message (BSM).
  • Successfully developed a model to detect crashes and near-crashes and also designed a methodology to apply hot spot identification.
  • Project findings outline an approach to identify crash hotspots utilizing connected vehicle data, once testbed data is widely available.

Publications

Kluger, R., Smith, B.L., & Park, H. (2016, January).Identification of Safety-Critical Events in Connected Vehicle Environments. Published within the proceedings of the 95th Annual Meeting of the Transportation Research Board. Washington, D.C.

Kluger, R., & Smith, B.L. (2015 January). Hot Spot Identification in a Connected Vehicle Environment. Published within the proceedings of the 94th Annual Meeting of the Transportation Research Board. Washington, D.C.

Presentations

Kluger, R., Smith, B.L., & Park, H. (2016, January).Identification of Safety-Critical Events in Connected Vehicle Environments. Presented at the 95th Annual Meeting of the Transportation Research Board. Washington, D.C.

Kluger, R., Smith, B.L, & Park, H. (2015, November). Identifying Safety-Critical Events using the Basic Safety Message.” Poster presented at the 9th University Transportation Center Spotlight Conference: Automated and Connected Vehicle. Organized by Transportation Research Board and Sponsored by U.S. Department of Transportation. Washington, D.C.

Kluger, R., & Smith, B.L. (2015 January). Hot Spot Identification in a Connected Vehicle Environment. Presented at the 94th Annual Meeting of the Transportation Research Board. Washington, D.C.

Kluger, R., & Smith, B.L. (2014 September). Pattern Matching Longitudinal Acceleration Data Using Naturalistic Driving Data. Presented at the ITS World Congress. Detroit, MI.

Kluger, R., & Smith, B.L. (2013 April). Network Safety Screening in a Connected Vehicle Environment. Presented at the University of Virginia Engineering Research Symposium Poster Session. Charlottesville, VA.

Kluger, R., & Smith, B.L. (2013 March). Network Safety Screening in a Connected Vehicle Environment. Presented at the Transportation Research Forum Annual Meeting. Annapolis, MD.

Project Information

Start date: 2012/9/3
End date: 2013/9/2
Status: Active
Contract/Grant Number: 0031370150000
Secondary Number: 54-6001805
Total Dollars: $79,869
Source Organization: Virginia Polytechnic Institute and State University, Blacksburg
Date Added: 08/20/2012

Sponsor Organization

Research and Innovative Technology Administration
University Transportation Centers Program
Department of Transportation
1200 New Jersey Avenue, SE
Washington, DC 20590
USA

UTC Grant Manager

Harwood, Leslie
Phone: 540-231-9530
Email: lharwood@vtti.vt.edu

Performing Organization

University of Virginia, Charlottesville
Center for Transportation Studies
P.O. Box 400742, Thornton Hall, D228
Charlottesville, VA 22903
USA

Research Investigators

Smith, Brian
Kluger, Robert

Subjects

Construction
Design
Pavements
Safety and Human Factors
Transportation (General)

More Information

RiP URL
Project Poster
TriD Format