The solid transportation problem considers the supply, the demand and the conveyance satisfying the transportation requirement in a cost-effective manner. This paper develops a method that is able to derive the fuzzy objective value of the fuzzy solid transportation problem when the cost coefficients, the supply and demand quantities, conveyance capacities are fuzzy numbers and additional const...

A single source transportation problem is an ordinary transportation problem with the additional requirement that the entire demand at each demand location be supplied from a single supply location. It is a special case of Ross and Soland's generalized assignment problem. Such problems occur frequently in applications. This paper gives two heuristic solution methods and a branch and bound algor...

Abstract—We are facing regional problems to low birth rate and longevity in Japan. Under this situation, there are some local municipalities which lose their vitality. The aims of this study are to clarify the present state of local public transportation services in local municipalities and relation between local public transportation services and population quantitatively. We conducted a quest...

Trade between Central Asia and the rest of the world began over 5000 years ago. However, patterns of trade and consequent demand for transportation under the globalization movement are much more complex. Supply of transportation to meet emerging characteristics and quantities of demand is expensive and time consuming. Yet, without efficient and effective transportation the economic growth poten...

DynaMIT is a simulation-based real-time system designed to estimate the current state of a transportation network, predict future traac conditions , and provide consistent and unbiased information to travelers. To perform these tasks, eecient simulators have been designed to explicitly capture the interactions between transportation demand and supply. The demand reeects both the OD ow patterns ...

one of the main challenges facing urban planning in the late 20th century is the growth rate of traffic that influences access to sustainable urban development. one of the solutions proposed for traffic—as well as the economic, social, and environmental problems originating from it—in large cities has been the applying of traffic restrictions during certain times and in specific places in order...

We consider a problem in which a supplier must determine the transportation mode for product deliveries to satisfy demand from a set of retailers. Based on combinations of four possible transportation modes, we consider seven different distribution policies on set of instances derived from data from an Italian company. For three demand scenarios (low, moderate, high), we compare the performance...

As the sharing economy has been increasing dramatically in the world, the mobile-hailed ridesharing companies like Uber and Lyft in the US, Didi Chuxing in China has begun to challenge traditional public transportation providers such as bus, subway or taxis. Ridesharing companies have shown their ability to provide the mobility services where public transit has failed. The human mobility demand...

Demand Bus System, a new public transportation system, is expected to be a convenient service for special transportation demands to solve more and more serious traffic problems concerning metropolises as Shanghai. Under this background, this paper focuses on evaluating the usability of the demand bus system rather than on the algorithms as the previous researches did. As a useful evaluation too...

A new algorithm namely, fuzzy zero point method is proposed for finding a fuzzy optimal solution for a fuzzy transportation problem where the transportation cost, supply and demand are trapezoidal fuzzy numbers. The optimal solution for the fuzzy transportation problem by the fuzzy zero point method is a trapezoidal fuzzy number. The solution procedure is illustrated with numerical example. Mat...