this study was conducted to assess the concentration of some heavy metals and to examine their contamination hazard in atmospheric dust of urban, industrial and non-urban areas in bushehr province, southwestern iran. fifty dust samples from the leaves of the palm trees and fifty surface soil samples from bushehr and assaluyeh cities as urban and industrial areas, respectively, and also from the...

Assessing the effects of air quality management strategies in urban areas is a major concern worldwide because of the large impacts on health caused by the exposure to air pollution. In this sense, this work analyses the changes in urban air quality due to the introduction of a maximum speed limit to 80 km h 1 on motorways in a large city by using a novel methodology combining traffic assimilat...

historic urban areas are a significant part of each city not only due to having irreplaceable cultural and social resources, but also due to their attractive patterns of life. they have being threatened by strong development trends. this paper aims to investigate the impacts of redevelopment trends in the historic city of shiraz, iran. the paper begins by highlighting historical development in ...

Urbanization is heavily influenced by the transportation that becomes fundamental to mobility of human activities. However, unchecked growth in raises serious concerns about many issues such as congestions, limited parking, and public transit problem. This phenomenon also overwhelms Kuala Lumpur, capital city Malaysia has a high number car ownership. Consequently, traffic congestion urban area ...

The Three-Line Scanner, high-resolution airborne sensor, has been emerged for few years. Meanwhile, the traffic problem on the urban street in the mega city around the world remain severe such as parking violation on the street, traffic jams, accident etc. With less than 5 cm ground resolution and seamless imaging capability along the road, TLS image is very suitable to analyze the traffic prob...

Urban traffic state evolution analysis is very significant and constructive for traffic guidance and control. In this paper, a quantitative method for analyzing regional traffic state evolution was proposed by constructing traffic state pattern transition network to mine regional traffic state information and state pattern transition characteristics from massive data. Based on the method, a GIS...

The rapid rise of location-based services provides us an opportunity to achieve the information of human mobility, in the form of participatory sensing, where users can share their digital footprints (i.e., checkins) at different geo-locations (i.e., venues) with timestamps. These checkins provide a broad citywide coverage, but the instant number of checkins in urban areas is still limited. Sma...