Comparison of corridor-level fatal and injury crash models with site-level models for network screening purposes on Florida urban and suburban divided arterials

Article Ergonomics

Localizing safety performance functions for two-way STOP-controlled (TWST) three-leg intersections on rural two-lane two-way (TLTW) roadways in Alabama: A geospatial modeling approach with clustering analysis

Zihe Zhang et al.

Summary: Safety Performance Functions (SPFs) are used to predict the number of crashes on highways based on site characteristics. Traditional approaches assume that the relationships between safety performance and observed factors are stationary, but there may be unobserved factors that significantly affect roadway safety. This study uses a spatial modeling approach to incorporate spatial heterogeneity into SPF model estimation.

ACCIDENT ANALYSIS AND PREVENTION (2023)

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Article Engineering, Civil

Enhanced Safety Performance Function for Highway Segments in Oklahoma

Joshua Qiang Li et al.

Summary: A safety performance function (SPF) is a statistical equation used to predict crash frequency on road facilities based on traffic exposure indicators. This study integrated various safety-related roadway characteristics to develop an enhanced SPF, which can aid decision-making on pavement preservation and maintenance practices in Oklahoma.

JOURNAL OF INFRASTRUCTURE SYSTEMS (2021)

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Article Ergonomics

A spatiotemporal analysis of motorcyclist injury severity: Findings from 20 years of crash data from Pennsylvania

Xiaobing Li et al.

Summary: Motorcyclists are at a much higher risk of fatality in traffic crashes compared to motor vehicle drivers, with previous studies emphasizing the importance of wearing helmets, driving alcohol/drug-free, and obeying traffic regulations to reduce injury severity. However, the interactions between these practices and other risk factors with local contexts remain under-explored, leading to a need for further research in understanding the spatial and temporal variations of these correlations.

ACCIDENT ANALYSIS AND PREVENTION (2021)

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Article Engineering, Industrial