This paper addresses the problem of real-time estimation of urban arterial network performance. A number of analytical time-dependent models have been formulated and implemented for the on-line estimation of arterial link and system travel times. The proposed models provide alternative ways of incorporating the contribution of various network and operational characteristics to the travel time. ...

This paper is an enquiry into the logical, metaphysical, and physical possibility of time travel understood in the sense of the existence of closed worldlines that can be traced out by physical objects. We argue that none of the purported paradoxes rule out time travel either on grounds of logic or metaphysics. More relevantly, modern spacetime theories such as general relativity seem to permit...

Telecommuting means that employees work completely or sometime at home or at remote telecommuting centres instead of daily travel to work at regular offices. Impacts of telecommuting on transport are becoming significant. This paper reviews the growth of telecommuting and analyzes the necessity to evaluate the influence of telecommuting in transport planning and control. The transport network e...

abstract background: the current practice to measure rv is either by bpg or helium dilution methods which may not be available in all clinics due to their cost. methods: this paper outlines a method for both direct and indirect calculation of rv via pft with acceptable sensitivity (81 %, 60% ), specificity (71 %, 94%) and validity (76%, 78%) for obstructive and restrictive lung disease respecti...

In multi-echelon distribution strategy freight is delivered to customers via intermediate depots. Rather than using direct shipments, this strategy is an increasingly popular one in urban logistics. This is primarily to alleviate the environmental (e.g., energy usage and congestion) and social (e.g., traffic-related air pollution, accidents and noise) consequences of logistics operations. This ...