Computerized crash reports usability and design investigation : final report.
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2016-06-01
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Edition:Final report
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Abstract:Electronic crash reports are advantageous because they can limit missing data, transcription errors, and the space
limitations of a single sheet of paper. Advancing electronic reports through user-centered design affords an
opportunity to improve law enforcement officer’s (LEOs) ability to accurately, timely, and efficiently document
crashes. Minnesota’s commencement of a new crash records database offered a unique opportunity for a redesign
of its electronic crash report to best support LEOs. A well-designed electronic report will not only support LEOs in
the line of duty but will also lead to more useful, complete, and accurate data for various state and federal agencies
for analysis and policy decision making. The objectives of this project were to: 1) improve crash data reliability an
validity, 2) develop a framework crash report interface based on human factors principles and usability
requirements, and 3) reduce the mental workload and required steps for users. Project tasks included: heuristic and
hierarchical task analysis, cognitive walkthroughs, validity and reliability testing, interviews, beta testing, and
usability testing. The human factors principles and user-centric approach lead the iterative design process to
produce a product with high levels of usability and intuitiveness. The project featured a cooperative approach
among university researchers, state agencies, and a private developer to ensure that the knowledge, design, and
results of the research effort was fully transferred into the final product. The resulting interfaces preliminarily
suggest improved user satisfaction, along with data completeness and accuracy, and provide a resource for
replication in multiple domains.
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