This paper presents an empirical inquiry into the applicability of zero-altered counting processes to roadway section accident frequencies. The intent of such a counting process is to distinguish sections of roadway that are truly safe (near zero-accident likelihood) from those that are unsafe but happen to have zero accidents observed during the period of observation (e.g. one year). Tradition...

In some countries where the economies are weak, it becomes crucial for those concerned with developmental policies to adopt approaches which will ensure that every single cent available is used to develop the country. In those fields to facilitate a conductive environment for economic development. Road traffic accidents have been recognized as one of those adverse elements which contribute to t...

In Indian four-lane express highway, millions of vehicles are travelling every day. Accidents are unfortunate and frequently occurring in these highways causing deaths, increase in death toll, and damage to infrastructure. A mechanism is required to avoid such road accidents at the maximum to reduce the death toll. An Emergency Situation Prediction Mechanism, a novel and proactive approach, is ...

The work described in this paper was conducted at North Carolina Agricultural and Technical State University and North Carolina State University. The study used the increased capabilities offered by geographic information systems (GISs), along with the detailed mapping (which contains highway features and geometrics) available for Guilford County, North Carolina, to demonstrate the use of engin...

I am not sure who suggested that I address myself to the question, “ Can highway accidents be reduced?” The question seems fair enough, but discussing it with state-city-county highway officials, contractors, and others close to the problem is quite a challenge. The explosive growth in numbers of vehicles and their use has raised radically the exposure to traffic accident hazards. After a gener...

Traditional correlational analyses of human skills and highway accidents have not been ver) productive. Some of the likely reasons for this are discussed. An alternative approach to accident-cautation research is outlined in which the importance of a skill with good face validity to driving is assessed in terms of its sensitivity to frequently occurring transient human states such as fatigue, s...

Relatively recent research has illustrated the potential that tobit regression has in studying factors that affect vehicle accident rates (accidents per distance traveled) on specific roadway segments. Tobit regression has been used because accident rates on specific roadway segments are continuous data that are left-censored at zero (they are censored because accidents may not be observed on a...