Urbanisation is a fundamental phenomenon whose quantitative characterisation is still inadequate. We report here the empirical analysis of a unique data set regarding almost 200 years of evolution of the road network in a large area located north of Milan (Italy). We find that urbanisation is characterised by the homogenisation of cell shapes, and by the stability throughout time of high-centra...

Multilane roads in high level-of-detail (LoD) datasets normally represent the constructed high-level roads of urban road network, which have large capacity of transportation and form the pattern of urban movement flows. They are crucial elements for many modern applications such as traffic planning, location-based services (LBS) and emergency evacuation. Nowadays, more and more Volunteered Geog...

Municipal engineers are faced with the difficult task of managing the urban roadway network. Maintaining this significantly large and expensive infrastructure requires effective planning and design. However, the majority of currently available design tools were developed originally for analyzing highway pavements. Little attention has been given in the past to urban road related issues. The env...

While maps exist for most urban areas, there are many locations where the information is not accurate, it may be out of date, or it may be incomplete or of insufficient resolution for the applications. Many difficult problems remain in automated cartography. One of them is the extraction of a street grid in an urban environment. Much of the work on road detection has concentrated on either low ...

This study investigates the usage of road networks both within and outside of home jurisdictions (city (or town) and county of residence) by analyzing GPS data collected in the Minneapolis Saint Paul metropolitan area, which tracked volunteers’ travel behavior to determine which roads (and thus which class of roads) users chose to accommodate their travel needs. More than half of the travel on ...

We investigate spatial patterns of residential and nonresidential land use for 257 U.S. metropolitan areas in 1990 and 2000, measured with 14 empirical indices. We find that metropolitan areas became denser during the 1990s but developed in more sprawl-like patterns across all other dimensions, on average. By far the largest changes in our land use metrics occurred in the realm of employment, w...

the issue of urban decline in city centers and horizontal expansion of the city and its consequences is a challenge in sustainable development of the cities. in this regard, new approaches were shaped to define career planning, urban design and urban environmental quality concerns in new-urbanism pattern. the critical approach to modern urban pattern was formed based on scattered, non-human and...

Metropolitan areas today are faced with pervasive changes of their urban spatial structure and are reshaped by postsuburbanization processes. In this study, one example of such postsuburban restructuring, the multinucleated monofunctional clustering of higher-order services, is investigated in the urban fringe of Vienna, Austria. The methodological framework uses microgeographic data for 2006 a...

Beijing lies on the northeastern margin of the North China Plain. The spatial organization of this city is characterized by the continuous addition of ring roads. Today Beijing has five rings completed for public use. The first ring circles the Forbidden City (the palace of the emperors). Because the area has no dense residential areas and few employees, the ring does not carry heavy regional t...