Traffic flow has traditionally been viewed either as a stochastic process, or as a kinematic fluid. In the case of the former usually only the equilibria and mean results have been of interest. In the latter situation traffic has been viewed as having a continuous differentiable density (perhaps with occasional shocks). Neither of these properly address the nature of traffic if the inherent tra...

In WDM msmission, each data channel is carried on a unique wavelength (or optical fnquency) and a single optical fiber has many different wavelengths. A lightpath (wavelength continuous path without processing in intermediate nodes) is needed to set up for an end-bend transmission Because of the lightpath continuity constraint, we need to consider the routing as well as pick up appropriate wave...

Uncovering anomalies in large ISPs and enterprise networks is challenging because of the wide variety of such anomalies. They can come from activity with malicious intentions (e.g., scanning, DDoS, prefix hijacking), or from misconfigurations and failures of network components (e.g., link failures, routing problems, outages in measurement equipment). In the literature, the problem of detecting ...

conclusions atpl was higher in the post-monsoon season. w/s ratio and correlation analysis revealed interseasonal homogeneity of tmv and traffic noise levels and interseasonal heterogeneity of air pollutant concentrations and atpl in the city microenvironments. results atpl was 3.35 times higher in the post-monsoon and 1.83 times higher in the pre-monsoon season than the permissible limits pres...

Although most motorised countries have experienced massive improvements in road safety over the last decades, human behaviour and differences in accident risk across sub-groups of drivers remains a key issue in the area of road safety. The identification of risk groups requires the identification of reliable predictors of safe or unsafe driving behaviour. Given this background, the aim of this ...

conclusions close attention to these predictors may aid officials in planning effective training programs and prevention measures. these predictors can also be used in the legislation of traffic laws and regulations and managerial plans of hospitals. patients and methods this longitudinal study reviewed 15,331 injuries in 21 hospitals in the city of tabriz from march 2012 to march 2013. the req...

the current internet inherently has a degree of survivability due to the connection less ip protocol. dynamic routing protocols are designed to react to faults by changing routes when routers learn about topology changes via routing information updates (e.g., link status advertisements). loss of quality of service (qos) has not been an issue because current internet traffic is the best-effort. ...

We present an application of multiple-objectives evolutionary optimization to the problem of engineering the distribution of the interdomain traffic in the Internet. We show that this practical problem requires such a heuristic due to the potential conflicting nature of the traffic engineering objectives. Furthermore, having to work on the parameter’s space of the real problem makes such techni...

in recent years due to improvements of technology within automobile industry, design process of advanced driver assistance systems for collision avoidance and traffic management has been investigated in both academics and industrial levels. detection of traffic signs is an effective method to reach the mentioned aims. in this paper a new intelligent driver assistance system based on traffic sig...

Prediction of traffic is very crucial for its management. Because of human involvement in the generation of this phenomenon, traffic signal is normally accompanied by noise and high levels of non-stationarity. Therefore, traffic signal prediction as one of the important subjects of study has attracted researchers’ interests. In this study, a combinatorial approach is proposed for traffic signal...