Manual method of feature extraction from remote sensing imagery is a tedious and time-consuming process. The current paper presents the application of Mathematical Morphology for extracting urban features like buildings and roads from remotely sensed imagery. Roads and Buildings are the major features that influence urban planning and development. Also, GIS databases are to be frequently update...

Regional governments in general, and metropolitan governments in particular, are under threat almost everywhere. Despite an apparent increase in the level of awareness of and the need for region-wide co-operation, revenue sharing and direct political accountability within metropolitan regions, the few formal metropolitan governments that do exist to meet these needs are in retreat. This paper r...

In this contribution, we introduce our concept for automatic road extraction in urban areas using high resolution aerial imagery and dense height information. For facilitating the extraction we use a hierachical road model comprising different road elements (markings, lanes, junctions, road network) at different scales as well as context objects of roads like buildings and vehicles. Global cont...

The neglectof the rail sector in Brazil that went on for decades is fortunately being overcome, especially in the metropolitan region of São Paulo, with the subways and monorails, an example to other Brazilian metropolitan regions. The historical disconnection between the passenger transport modals combined with the increasing private vehicle fleet and the lack of investment in mass transit sys...

AIM The susceptibility of children to polluted air has been pointed out several times in the past. Generally, children suffer from higher exposure to air pollutants than adults because of their higher physical activity, higher metabolic rate and the resultant increase in minute ventilation. The aim of this study was to examine the exposure characteristics of public elementary schools in Prague ...

extended abstract 1. introduction at the beginning of the 3rd millennium, future studies (foresight) have been involved in the discovery, innovation and assessment of possible, probable and desirable futures as well as analyzing past procedures; such an approach is the objective evidence of what gaston berger has stated about the future, that is “see the future and disrupt its framework” (godet...

Large-scale daily commuting data were combined with detailed geographical information system (GIS) data to analyze the loss of transport efficiency caused by drivers' uncoordinated routing in urban road networks. We used Price of Anarchy (POA) to quantify the loss of transport efficiency and found that both volume and distribution of human mobility demand determine the POA. In order to reduce P...

In this paper we propose an approach to multi-class semantic segmentation of urban areas in high-resolution aerial images with classspecific object priors for buildings and roads. What makes model design challenging are highly heterogeneous object appearances and shapes that call for priors beyond standard smoothness or co-occurrence assumptions. The data term of our energy function consists of...

This paper presents a real-time database modeling complex networks of intersecting roads and walkways in urban virtual environments. The database represents information about the layout of streets and sidewalks, the rules that govern behavior on roads and walkways, and the locations of agents with respect to road and sidewalk structures. This information is used by programs that control the beh...