Although the transportation problem can be solved as an ordinary linear programming problem, its special structure can be exploited, resulting in a special-purpose algorithm, the so-called transportation method. The method was actually developed in 1941 by F.L. Hitchcock and therefore preceded the simplex method by half a dozen years. Still, it can be viewed as a streamlined version of the simp...

the railway transportation planning under the fuzzy environment is investigated in this paper. as a main result, a new modeling method, called minimum risk chance-constrained model, is presented based on the credibility measure. for the convenience ofs olving the mathematical model, the crisp equivalents ofc hance functions are analyzed under the condition that the involved fuzzy parameter...

Transportation is the forerunner of economic and social development. Therefore, high-quality development comprehensive transportation great significance to ensure overall progress smooth implementation major national strategies. The essence in realize optimal allocation resources. This study handles two aspects. First, factors that reflect quality are defined analyzed, an evaluation system prop...

today, transportation of hazardous materials (i.e., hazmat) is a very important issue for researchersdue to the risk of this transit, which should be considered for development of industries and transportation.therefore, a model that is useful should consider the risk and damage to humanitarianand environmental issues due to transit of hazmat materials. by considering the related cost, thereali...

transportation is by people and for them. it is a process of providing mobility and accessibility for people both as passengers and as consumers of the goods. therefore it is true when today there is an emphasis on the considering transportation the most influential development in every society. regional development cannot properly be happened without enough transportation infrastructure and qu...