Traffic congestion is one of the most serious problems that impact urban transportation efficiency, especially in big cities. Identifying traffic congestion locations and occurring patterns is a prerequisite for urban transportation managers in order to take proper countermeasures for mitigating traffic congestion. In this study, the historical GPS sensing data of about 12,000 taxi floating car...

A large share of the public transportation services is provided using contests for companies to find a low cost provider of these services. A trend towards smaller units of transportation has been observed, as the demand for increased efficiency and cost minimisation has shifted traditional transportation patterns. This paper provides economic analysis of the current situation in competition fo...

Integrated land use-transportation models predict future transportation demand taking into account how households and firms arrange themselves partly as a function of the transportation system. Recent integrated models require parcels as inputs and produce household and employment predictions at the parcel scale. Block subdivision algorithms automatically generate parcel patterns within blocks....

Transportation systems exist within at least two types of space. One is the apparent geographic space, but equally important is the time–space implied by the travel time relations created by the system. Differences between the geographic and time–spaces are properties induced by the transportation system. Methods for time–space transformations of geographic space to explore, visualize and analy...

Alsau?--lntelligent visual surveillance for road vehicles is a key camponmt for developing autonomous intelligent transportation sys tem. I n this paper, a probabilistic model for prediction of traliic accidents using 3D model based vehicle tracking is proposed. Sample data including motion trajectories are first obtained by 3D model based vehicle tracking. A fuzzy self-organizing neural networ...

In distributed systems, objects are transported and addressed via network connections. A protocol for object transportation helps to cross the mismatch between objects with state and behavior, and a flat transport presentation. There are different strategies for approaching such a protocol definition. The choice of an appropriate process does not only have a technical impact, but also determine...

UrbanSim is a tool for use by urban planners and others to help predict future patterns of urban development under different possible input scenarios, over periods of twenty or more years. It should support deliberation and debate on such issues as building new transit systems or freeways, or changing zoning or economic incentives, as well as on broader issues such as sustainable, livable citie...

It is difficult to determine whether specific weather events like the storms in Washington can be definitively attributed to climate change or if they are severe storm occurrences within otherwise natural weather patterns. However, consensus in the scientific community indicates that major storms and other events including inundation of coastal roads from a rising sea level, erosion of roadways...