In order to evaluate the construction accident risk, a novel method integrating principal component analysis (PCA) and the unascertained number algorithm with the synthesis weights is presented. According to humanmachine engineering, the multi-index and hierarchical system of accident risk in construction projects was built. PCA is applied to find relevant factors of the accident risk, which ar...

vehicle crashes are amongst the major causes of mortality and results in losses of lives and properties. alarge number of the vehicle crashes occur on rural roads. accidents become more noteworthy in two-laneroads due to going and coming traffic. therefore, prediction of crashes and their causes are considerablyimportant to reduce the number and severity of the accidents. the safety index is a ...

The Palmer Drought Severity Index (PDSI) has been used for more than 30 years to quantify the long-term drought conditions for a given location and time. However, a common critique of the PDSI is that the behavior of the index at various locations is inconsistent, making spatial comparisons of PDSI values difficult, if not meaningless. A self-calibrating Palmer Drought Severity Index (SC-PDSI) ...

An important method for the development of strategies and measures to prevent accidents and mitigate the injury severity is the analysis of accident databases. However, the variety of research questions requires different kind of information. To assess accident situations, examine trends, or similar analysis, databases at a base level such as national statistics are available for many countries...

Typically low severity neck injuries (whiplash injuries) have been associated with front and rear impacts. These injuries are classified as low severity injuries and are given the lowest rating on the Abbreviated Injury Scale of (AIS) 1. In spite of its low severity rating, these injuries can be disabling and life altering. More recently, the literature has highlighted the need to investigate l...