Highway Network Connection Optimization And Decision-making On The Perspective Of Integrated Transportation

In order to extract the current characteristics on the basis of evaluation about highwaynetwork, a matter element method with AHP and entropy is proposed for the relative merits ofhighway network evaluation, which is based on extension theory and correlation function.The method can research network actual development state from qualitative and quantitativeaspects，can comprehensively reflect the development degree of highway network based onactual conditions and practical ability and the development trend of single index，is of goodmaneuverability and implementation.Considering integration requirement for comprehensive transportation in china, thespecial trunk highway is defined, and is divided into industry function highway, harbor,station and airport connection highway, city exports highway, inter-provincial interfacehighway, and express-way entrance highway. At the same time, the advantages of severaldifferent planning methods is combined, network connection scheme is determined byqualitative and quantitative method. Research shows that this method can combine theexpert’s experience and the local practical requirement，and has strong operability andimplementation.Considering highway network planning involves multiple and incompatibility indicatorsof different systems and different dimensions about technology economy society environment,one kind of grey relation projection evaluation model based on the maximizing deviationmethod was established. Firstly, the original decision-making matrix was built up by takingevaluation indexes as set of factors and planning schemes as field sets, which wasstandardized by the [-1，1] linear transformation operator. Secondly, the ideal programs weretaken as the reference points of priority on the basis of TOPSIS, and the grey relevancymatrixes were established for taking the ideal programs as reference sequences and takingplanning schemes as compared sequences on the base of grey system theory. Thirdly, theevaluation indexes weights were determined by the maximizing deviation method toovercome the effect of subjectivity, and the augmented correlation coefficient matrix withweights and grey relation projection evaluation model was built up. Research shows that themodel can fully take advantage of the grey relational analysis and projection decision, avoidsubjectivity of determination about index weights, and is simple and easy which can providescientific and reasonable decision making basis for highway network planning.Considering the risk attitude of decision makers on the impact of highway construction project sequence and grey character for sequence factors, the sequence parameters of highwayconstruction projects are designed, and the multi-index grey relational decision-makingmethod based on cumulative prospect theory is proposed. Firstly, the positive and negativeideal plans are taken as the reference point of priority through the standardization of primitivedecision information on the basis of TOPSIS. Secondly, the positive and negative greyrelevancy matrixes are established for taking the positive and negative ideal solution asreference sequences and taking decision-making programs as compared sequence on the baseof grey system theory. Thirdly, the positive and negative prospect value matrixes and thenonlinear planning model for the maximum of comprehensive prospect value are put up onthe base of cumulative prospect theory and its prospect value functions, the optimum weightvector is solved, and highway construction project sequence is determined. Finally, this modelis applied in the sequence of five highways, and is compared with AHP and grey relationprojection multi-criteria decision method, which illustrates the usefulness and validity of themodel.