the space structure that governs cities has depended on several corresponding relations and various factors which consist of: population, job and activities, transportation patterns, urban sub-structures, various services and etc that always were connected to each other and have formed its space structure. but since these relations are more complicated in big cities, the importance of paying at...

We introduce a growing network evolution model with nodal attributes. The model describes the interactions between potentially violent V and nonviolent N agents who have different affinities in establishing connections within their own population versus between the populations. The model is able to generate all stable triads observed in real social systems. In the framework of rate equations th...

in this commentary, we endorse concerns about the health impact of the trans-pacific partnership (tpp), paying particular attention to its mechanisms for investor state dispute settlement. we then describe the different, judgeled approach being advocated by the european commission team negotiating the trans-atlantic trade and investment partnership, arguing that, while not perfect, it offers si...

How traffic-related air pollution generation and exposure is distributed among different population groups is an important environmental justice concern. From a social equity perspective, many questions arise at the metropolitan scale: Do socially disadvantaged communities have higher exposure levels to traffic-related air pollution? Do discrepancies exist wherein neighborhoods are not exposed ...

probabilistic approach of traffic assignment has been primarily developed to provide a more realistic and flexible theoretical framework to represent traveler’s route choice behavior in a transportation network. the problem of path overlapping in network modelling has been one of the main issues to be tackled. due to its flexible covariance structure, probit model can adequately address the pro...

Background & Aims of the Study: Risky driving behaviors are a set of actions that put drivers at the risk of death or injuries which are caused by the violations of legal standards. These kinds of behaviors are the key factor leading to a higher risk of traffic crashes and injuries. The present study aimed to investigate the situation of some high-risk traffic behaviors and the related factors ...