Safety performance functions (SPFs), by predicting the number of crashes on roadway facilities, have been a vital tool in the highway safety area. The SPFs are typically applied for identifying hot spots in network screening and evaluating the effectiveness of road safety countermeasures. The Highway Safety Manual (HSM) provides a series of SPFs for several crash types by various roadway facili...

The Malaysian construction industry has been long categorized as one of the riskiest industries due to high number accidents that happened at sites. poor safety performance in caused several drawbacks and failures aspects project performance, cost, completion time, productivity. One reasons led this situation is inadequate awareness factors. Therefore, study aims investigate significant factors...

Setback in elevation of a structure is a special irregularity with considerable effect on its seismic performance. This paper addresses multistory Reinforced Concrete (RC) frame buildings, regular and irregular in elevation. Several multistory Reinforced Concrete Moment Resisting Frames (RCMRFs) with different types of setbacks, as well as the regular frames in elevation, are designed according...

X3D is a powerful and expressive format for defining interactive 3D scenes. Interactive 3D applications, though, require more than just the scene definition; they require extremely complex interactions which are best modeled through scripts and they require a high frame-rate in order to give the user the illusion of fluid interactivity. In this paper we study two techniques that cover these two...

abstract background: technical, human, operational and organizational factors have been influencing the sequence of occupational accidents. among them, organizational factors play a major role in causing occupational accidents. the aim of this research was to understand the iranian safety experts’ experiences and perception of organizational factors. methods: this qualitative study was conducte...