The aim of this study was to quantify the error associated with different accessibility methods commonly used by public health researchers. Network distances were calculated from each household to the nearest GP our study area in the UK. Household level network distances were assigned as the gold standard and compared to alternate widely used accessibility methods. Four spatial aggregation unit...

The analysis of radio propagation in urban terrains became highly imperative owing to the fact that the environment is composed of different physical obstructions such as high-rise buildings, towers and bill boards situated on a grid-like pattern of streets. Radio propagation characteristics, to a large extent, vary from one type of environment to the other. In this paper, the suitability of th...

Changing the design aspects of urban form is a positive approach to improving transportation. Land use and urban design strategies have been proposed to not only to bring about changes in travel behavior but as a way of providing a better quality of life to the residents. While the research on the relationship between urban form and travel behavior has been pretty extensive, there is a clear ga...

One of the major reasons for accidents is speed. Top of Form Inappropriate speed has been identified as the most important causal factor for serious traffic accidents. Traffic calming measures (TCMs) are engineering measures that are widely implemented to improve road safety by considerably reducing vehicle speed. TCMs have been widely used in urban areas to reduce vehicle flow rat...

Inefficient urban freight transport has a negative impact on both livability and profit margins in the supply chain. Urban logistics schemes, consisting of one or multiple governmental policies and company initiatives, attempt to address these problems. However, successful schemes are difficult to realize due to the divergent objectives of the agents involved in urban logistics. Traditional opt...

Urban stormwater quality modelling plays a central role in evaluation of the quality of the receiving water body. However, the complexity of the physical processes that must be simulated and the limited amount of data available for calibration may lead to high uncertainty in the model results. This study was conducted to assess modelling uncertainty associated with catchment surface pollution e...

Slang is ubiquitous on the Internet. The emergence of new social contexts like micro-blogs, question-answering forums, and social networks has enabled slang and non-standard expressions to abound on the web. Despite this, slang has been traditionally viewed as a form of non-standard language – a form of language that is not the focus of linguistic analysis and has largely been neglected. In thi...

T he answers to important questions in urban economics depend on the density of population, not the size of population. In particular, positive production or residential externalities, as well as negative externalities such as congestion, are typically modeled as a function of density (Chatterjee and Carlino 2001, Lucas and Rossi-Hansberg 2002). The speed with which new knowledge and production...

Introduction M igration, AIDS epidemics, and urban food security, interact in complex ways that are little researched and understood in the Southern and Eastern African context. To date, research on urban food security has been concerned with urban systems of acquisition and production, with an emphasis on the informal sector and more recently on urban agriculture. Much less attention has been ...

Urban areas have been expanded throughout the globe. Monitoring and modelling urban growth have become a necessity for a sustainable urban planning and decision making. Urban prediction models are important tools for analyzing the causes and consequences of urban land use dynamics. The objective of this research paper is to analyze and model the urban change, which has been occurred from 1990 t...