Freeway traffic accidents are complicated events that are influenced by multiple factors
including roadway geometry, drivers' behavior, traffic conditions and environmental factors …

The primary objective of this study is to divide freeway traffic flow into different states, and to
evaluate the safety performance associated with each state. Using traffic flow data and crash …

Freeway collisions are thought to be affected by traffic states. To reduce the number of
collisions, the study to reveal how the traffic states influence collisions are required …

The primary objective of this study was to evaluate the risks of crashes associated with the
freeway traffic flow operating at various levels of service (LOS) and to identify crash-prone …

Single-vehicle (SV) and multi-vehicle (MV) crashes have been recognized as differing in
spatial distribution and influencing factors, but little consideration has been given to these …

The primary objective of this study is to develop a quantitative indicator that can be directly
used to identify hazardous traffic states on freeway mainlines. Using data obtained from a 22 …

Prevention of secondary crashes is one of the priorities in traffic incident management.
However, limited information on secondary crashes has largely impeded the selection of …

This study aimed to investigate the impacts of traffic flow conditions on crash casualty of
different collision types using high-resolution traffic data. The principle components analysis …

The identification of secondary crashes is accompanied by the definition of the primary crash
impact area. Although the crash impact area varies with the geometric characteristics of …

A critical part of any risk assessment is identifying how to represent exposure to the risk
involved. Recent research shows that the relationship between crash count and traffic …