Study On Agricultural Products Transportation Problems With Warning Time

With the accelerated process of economic development and the improvingmodernization of production level of agricultural products, agriculturalproducts transportation demand and transportation volume are increasing year by year.The transportation of fresh agricultural products in the whole agricultural producttransportation is very large. But because transportation of agricultural products in ourcountry is still very backward, it cannot adapt to the efficient development ofinternational agriculture. How to put the rich agricultural products to the market by theadvanced and efficient transportation model and to produce the value in agriculturalproduction transportation is a need to study further. Because the majority of freshagricultural products have25-30%loss rate in the process of transportation. It createshuge economic loss, therefore the agricultural products will be transported to thedesignated sales outlets in time is directly related to the agricultural industry chain and theinterests of the national economic benefit.In this paper, through the theory analysis of transport of agricultural products, withthe warning time determining the shortest distance and a warning time of two kindsof agricultural products total freight transportation problem is the lowest variables andobjective function, and the transport problems of two types of agricultural products toestablish a mathematical model. And the analysis of correlation method for solving thetransportation problem of agricultural products such as table method, with a simple methodof transportation problems with time constraints and variable closed-loop method forproblem description, analysis, assumptions, two models with early warning timetransportation problem of agricultural products, and its solution. Secondly, analyzethe factors and their weights with the warning time of the shortest distance anda warning time of total freight lowest of the two types of agriculturalproducts transportation problem. Finally by analyzing respectively represent two kinds oftransportation problems with early warning time, crab and apple cases, respectively, using three kinds of algorithm are used to solve the problem, the best plan of transportation, andeffectively prove the correctness and simplicity of variable closed loop method.