This paper first studies the definition and connotation of transportation efficiency. From the viewpoint of different groups participating in urban transportation systems, different system functions and targets required by each group are analyzed. Then the corresponding system targets and evaluation rules required by the administrator are mainly studied. Four primary aspects which have great im...

This paper discusses how to solve balanced transportation problems, with costs in the form of trapezoidal fuzzy numbers. Fuzzy are transformed into crisp using Robust’s method as a ranking function. A new approach modified Hungarian has been applied problem transportation. solves one stage optimization and yields same results other methods that two stages.

As an important part of daily economic activities, freight transportation produces various pollutions during the process, which will have a negative effect on sustainable development environment. In this paper, entropy weight technique for order preference by similarity to ideal solution (TOPSIS) combination method was used specific calculations, in judge whether is environmentally sustainable....

The purpose of this study is to find a proper prehospital transportation scenario planning of an emergency medical service (EMS) system for possible burdensome casualties resulting from extreme climate events. This project focuses on one of the worst natural catastrophic events in Taiwan, the 88 Wind-caused Disasters, caused by the Typhoon Morakot; the case of the EMS transportation in the Xiao...