The properties of vehicle time headways are fundamental in many traffic engineering applications, such as capacity and level of service studies on highways, unsignalized intersections, and roundabouts. The operation of modern vehicle-actuated traffic signals is based on the measurement of time headways in the arriving traffic flow. In addition, the vehicle generation in traffic flow simulation ...

Extreme value analysis of wind data in the Kingdom of Saudi Arabia is described. Probabilistic models of wind behavior at twenty stations are generated which yield the basic design wind speeds for a given recurrence interval in fastest mile units. The models are verified by the Chisquare and Kolmogorov-Smirnov goodness-of-fit tests at 5 percent significance level. Basic design wind speeds are c...

In this paper, we propose a new speech probability distribution, two-sided generalized gamma distribution (GΓD) for an efficient parametric characterization of speech spectra. GΓD forms a generalized class of parametric distributions including the Gaussian, Laplacian and Gamma probability density functions (pdf’s) as special cases. All the parameters associated with the GΓD are estimated by the...

In science, it is a common experience to discover that although the investigated effect is very clear in some individuals, statistical tests are not significant because the effect is null or even opposite in other individuals. Indeed, t-tests, Anovas and linear regressions compare the average effect with respect to its inter-individual variability, so that they can fail to evidence a factor tha...

The aim of the present paper is evaluation resonance half-widths first maximum for probability total neutrino conversion in a medium. We consider simplest case two-neutrino mixing matter with constant refraction length. results can be applied, example, to studies oscillations Earth’s mantle and elsewhere.