… In this study, crash data from Los Angeles was used to investigate the transferability of
the large-truck crash injury-severity determinants across weekdays and weekends. Crash-injury …

… between truck-involved and non-truck-involved crashes, and an overall spatiotemporal
instability … to prevent crashes for truck-involved and non-truck-involved crashes across different …

… An RPL model considering the heterogeneity of means and variances was used to analyze
the injury severity of truck crashes in this study. The crash injury function that determined the …

… tested produced equal parameters can be rejected with over 99% confidence, suggesting
that separate models are warranted for the time-of-day and time-periods used in this analysis. …

… truck crashes, this study investigates the temporal shifts in parameters influencing injury
severities in large truck crashes … instability analysis of the crashes including both truck and non-…

… The presence of temporal instability across both single and multi-truck collision risk …
comprehensive analysis of the associated factors influencing injury severity in truck-involved crashes…

… , this study addresses and discusses the fundamental issues of the temporally unstable
correlation in unobserved heterogeneity between possible factors in crash severity analysis. …

… Moreover, factors that contribute to the injury severities of rollover crashes may show
instabilities in different vehicle types and time periods, which requires further investigations. This …

… In summary, two approaches can be used to analyze heterogeneous crash data: data
constraining and clustering. Although data constraining is simple, it has limited applicability and …

… the temporal stability or instability of contributing factors. … instability of factors affecting
truck-involved work zone crash … develop crash injury models for truck-involved work zone crashes. …