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                        HSIP Noteworthy Practice Series
                        Safety Data Collection, Analysis, and Sharing


            
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                Data Sharing and Decision Support Tool – New Jersey
The New Jersey Department of Transportation (NJDOT) recognized a need to provide transportation safety data in a more user-friendly format. Providing easier access to data and enhanced analytic capabilities would encourage participation by safety partners in the State’s various safety programs, including its SHSP efforts.

The State contracted with the Rutgers University Transportation Safety Resource Center (TSRC) to develop a roadway safety decision support tool. This software program enables users to quickly filter, analyze, and map crash records. The tool also allows merging of specialized data sources with crash records, enabling in-depth analysis.

The TSRC developed the software as a web-based application to enable public agency personnel to quickly analyze safety data. By hosting the tool on a platform of servers, large amounts of data can be accommodated with little effect on execution speed. The application processes queries submitted on-line, produces reports mapping crash location and severity, and identifies contributing factors. Users can access the software from any Internet-enabled computer without requiring a high level of computing power. The program is secured through the use of login IDs and passwords to protect content and allows users to save filters and preferences. The program enables network screening, economic analysis, and diagnosis. The network screening layer integrates methodologies currently used by safety engineers to locate high-crash intersections or segments. Crash rates can be calculated for any filter/query. The software also includes a model to predict crash frequencies and severity for selected roadways. Future elements will incorporate the safety performance function calculations from the new Highway Safety Manual into the program for all classifications of roadways to determine which locations have the greatest potential for safety improvement.

Screen Shot - Screen shot from New Jersey DOT's on-line Plan4Safety crash data analysis tool.


The Center also provides engineering, planning, training, and outreach services to local governments and assists with crash data analysis to support SHSP implementation. NJDOT funds work of the TSRC through the HSIP.

Key Accomplishments

Developed new system for on-line access to transportation safety data enabling safety partners to make data-driven safety decisions.
	Enhanced capabilities to analyze data and tailor reports to support safety initiatives.
	Distributed safety data broadly to encourage greater SHSP participation.Results

The web-based software tool supporting collection, analysis, and distribution of transportation safety data has been instrumental in the development and implementation of the SHSP. The approximately 500 agencies using the analysis software enjoy easy access to transportation safety data and can perform analyses to support their local safety initiatives as well as those at the state level. Broad dissemination of safety data and the availability of this tool has encouraged participation in the SHSP by safety partners at all levels.

Contact

Dave Kuhn
Assistant Commissioner of Capital Investment & Grant Administration
NJ Department of Transportation
(609) 530-3855David.Kuhn@dot.state.nj.us
      
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                Book:HSIP Noteworthy Practice Series
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                                Safety Warrants and Spot Safety Index – North Carolina
                Implementation of Systemwide Improvements – Missouri
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                Development of SPFs for All State Routes and Intersections – Illinois
                Level of Service of Safety and Diagnostic Analysis – Colorado
                HSIP Project Evaluation
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                University Conducting HSIP Project Evaluations Using Empirical Bayes – Wisconsin
                Safety Data Collection, Analysis, and Sharing
                                Law Enforcement Expert for Improved Data Collection – Louisiana
                Data Analysis for County Highway Safety Plans – Minnesota
                Data Sharing and Decision Support Tool – New Jersey
                SHSP Stakeholder Involvement
                                Statewide and Regional SHSP Coalitions – Missouri
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                Engaging Native American Tribes in the SHSP – Washington
                MPO Safety Management Planning – Cheyenne, Wyoming
                Revisiting SHSP Emphasis Areas
                                Focusing on Fewer Emphasis Areas – West Virginia
                Tiered Emphasis Areas for Statewide and County Safety Planning – Washington
                Speeding and Aggressive Driving and Distracted Driving Task Forces – Louisiana
                Use of the HSIP Flexible Funding Provision
                                Alabama Flexes HSIP Funds for Increased Enforcement – Alabama
                Michigan Uses HSIP Flex Funds for Winter Safe Driving Campaign – Michigan
                Nevada Funds Education and Outreach Programs with HSIP Flex Funds – Nevada
                Utah Flexes HSIP Funds to Enhance Partners’ Safety Efforts – Utah
                SHSP – Leadership that Saves Lives
                SHSP – Get Involved! U.S. DEPARTMENT OF TRANSPORTATION

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