Modeling of incident type and incident duration using data from multiple years
The paper presents a model system that recognizes the distinct traffic incident duration
profiles based on incident types. Specifically, a copula-based joint framework has been …
profiles based on incident types. Specifically, a copula-based joint framework has been …
Joint modeling of traffic incident duration components (reporting, response, and clearance time): a copula-based approach
The current study develops a trivariate framework that accommodates for inherent
dependencies across the various components of incident duration. A unique ordered …
dependencies across the various components of incident duration. A unique ordered …
A multivariate copula-based macro-level crash count model
The current study contributes to safety literature both methodologically and empirically by
developing a macro-level multivariate copula-based crash frequency model for crash …
developing a macro-level multivariate copula-based crash frequency model for crash …
Jointly analyzing freeway primary and secondary crash severity using a copula-based approach
A copula-based model is developed in this study to jointly model the severity of freeway
primary crashes and secondary crashes. The copula-based model can concurrently account …
primary crashes and secondary crashes. The copula-based model can concurrently account …
Exploring analytical, simulation-based, and hybrid model structures for multivariate crash frequency modeling
In safety literature, there are two ways to incorporate the potential correlation between
multiple crash frequency variables:(1) simulation-based approach and (2) analytical closed …
multiple crash frequency variables:(1) simulation-based approach and (2) analytical closed …
Multivariate copula temporal modeling of intersection crash consequence metrics: a joint estimation of injury severity, crash type, vehicle damage and driver error
This study employs a copula-based multivariate temporal ordered probit model to
simultaneously estimate the four common intersection crash consequence metrics–driver …
simultaneously estimate the four common intersection crash consequence metrics–driver …
Jointly analyzing freeway traffic incident clearance and response time using a copula-based approach
Understanding factors that influence the duration time of incidents are important for traffic
incident management agencies to design effective mitigation strategies. Previous studies …
incident management agencies to design effective mitigation strategies. Previous studies …
Copula-based method for addressing endogeneity in models of severity of traffic crash injuries: application to two-vehicle crashes
TA Rana, S Sikder, AR Pinjari - Transportation Research …, 2010 - journals.sagepub.com
An emerging copula-based methodology is used to address endogeneity in models of crash
injury severity. Specifically, two important sources of endogeneity are addressed:(a) …
injury severity. Specifically, two important sources of endogeneity are addressed:(a) …
Copula-based bivariate count data regression models for simultaneous estimation of crash counts based on severity and number of vehicles
Statistical models of crash frequency typically apply univariate regression models to
estimate total crash frequency or crash counts by various categories. However, a possible …
estimate total crash frequency or crash counts by various categories. However, a possible …
A new econometric approach for modeling several count variables: a case study of crash frequency analysis by crash type and severity
There is limited adoption of research modeling crash severity frequency considering
different crash types due to the challenge associated with analyzing large number of …
different crash types due to the challenge associated with analyzing large number of …