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Office of Research, Development and Technology at the Turner-Fairbank Highway Research Center

Realistic Artificial Datasets: Objective Evaluation of Data-Driven Safety Analysis Models

Publication Information

Publication Type:
Fact Sheet
Publication Number:
FHWA-HRT-20-047
Abstract:

Crashes occur because of complex interactions between multiple variables, including driver behavior, environmental context, roadway design, and vehicle dynamics. Data-driven safety analysis (DDSA) models help State and local agencies quantify safety data, identify high-risk roadway features, and predict the effects of proposed safety measures. However, even when a model performs well overall, it may not accurately represent the interactions between variables for a specific location or crash because the underlying relationships in the real world are unknown. One proposed solution is to generate realistic artificial datasets (RAD) with predetermined safety relationships built into them. Since these are known, the RAD can serve as a testbed, revealing how well a model reflects those underlying cause and effect relationships.

Publishing Date:
August 2020
Author(s):
Mohamedshah, Yusuf
FHWA Program(s):
Research
Exploratory Advanced Research
AMRP Program(s):
Exploratory Advanced Research
FHWA Activities:
Human Factors
Subject Area:
Research
Safety and Human Factors