Research purposes: Plan and construction of Intercity rail transit is an inevitable demand for the development of urban complexes to meet the requirements of increasing demand of passengers and freight traffic．Doing the deep researches on the network framework，working out the reasonable optional plans and establishing the effective index evaluation system and evaluation method is very significant to reasonable planning intercity rail transit．In this paper，the intercity rail transit plans for Pearl River Delta Region are offered and the optimal plan is obtained form them with comprehensive fuzzy evaluation method．
Research conclusions: This paper gives the advices that the scale of intercity rail transit network for Pearl River Delta Region should be estimated with demand analysis method，the optional plans should be worked out according to the city and town arrangements and the space structure of Pearl River Delta Region，the evaluation system should be established，the index weight should be determined with step analysis method，and the comprehensive evaluation model for planning the intercity rail transit network in Pearl River Delta Region should be established with fuzzy comprehensive evaluation method．The research result shows the methods mentioned above are available for planning intercity rail transit network．
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