In order to control urban traffic with model-based control methods, a proper traffic model is very important. This traffic control model needs to have enough descriptive power to reproduce relevant traffic phenomena, and it also has to be fast enough to be used in practice. Therefore, macroscopic urban traffic flow models are usually applied as control models. These models are normally sampled ...

Urban water systems consist of natural and engineered flows of water interacting in complex ways. System complexity can be understood via mass conservative models that account for the interrelationships among all major flows and storages. We have developed a generic urban water system model in the R package CityWaterBalance. CityWaterBalance provides a reproducible workflow for studying urban w...

due to the different factors and complexity of their effects on healthy and sustainability of urban forest, this study has been tried by means of determining effective factors in ecosystem, and dividing sorkhe hesar man made forest park to homogeneous units according to natural factors (slope, aspect, high, soil depth, mixture and pure planting system) and human factors (amount of irrigation an...

The role of scenic landscapes in restoring human mental fatigue has begun to receive attention from landscape researchers. However, little is known about the positive role of visually-preferred landscapes on restorative environments and in improving the mental fatigue of people. This study attempted to determine the relationship between the predictors of preference and restorative components of...

During the last 100 years in many countries of the world, there have been dramatic changes in natural/rural landscapes due to urbanization. Since many wildlife species are unable to adapt to these alterations in their environment, urbanization is commonly responsible for a decline of biodiversity in areas of urban development. In contrast, some wild animal species are attracted to peri-urban an...

Urban environments present unique challenges to interactive visualization systems, because of the huge complexity of the geometrical data and the widely varying visibility conditions. This paper introduces a new framework for real-time visualisation of such urban scenes. The central concept is that of a dynamic segmentation of the dataset, into a local three-dimensional model and a set of impos...

This paper is mainly devoted to lay an empirical foundation for further research on complex spatial dynamics of two-population interaction. Based on the US population census data, a rural and urban population interaction model is developed. Subsequently a logistic equation on percentage urban is derived from the urbanization model so that spatial interaction can be connected mathematically with...

Kathleen M. Carley Carnegie Mellon University [email protected] Abstract Urban threat environments, including urban warfare and disaster scenarios, can be characterized as complex systems. Decision making in urban threat environments may be difficult because the underlying system exhibits non-linear and path dependent behavior that humans, unassisted by computers, have trouble understa...

Integrated urban water management e a framework to understand, control, and optimize elements of the urban water infrastructure as an integrated system e is inherently complex. It becomes more complex and challenging, however, when public participation in management institutions is considered. This paper applies a systems perspective to explore institutional arrangements for participation. Our ...

Over the past years, the agent-based modeling approach has emerged as a promising geospatial technique for urban change simulation. In this paper, we review the status of agent-based models for urban land change research, with the emphasis on the issues of how far agent-based models have been implemented to model the real world complexity. For such a purpose, we have identified four features of...