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中文 3211 字 外文翻譯 原文 Service Design Models for Rail Intermodal Transportation Material Source: University of Quebec in Montreal Author: Teodor Gabriel transportation forms the backbone of the world trade and exhibits significant growth resulting in modifications to the structure of maritime and landbased transportation systems,as well as in the increase of the volume and value of intermodal traffic moved by each individual play an important role within the intermodal chain. Their own interests and environmentconscious public policy have railroads aiming to increase their market address the challenge of efficiently peting with trucking in offering customers timely,flexible,and lowcost transportation services,railroads propose new types of services and enhanced an Operations Research point of view,this requires that models be revisited and appropriate methods be paper discusses some of these issues and developments focusing on tactical planning issues and identifies challenging and promising research directions. Key words: Intermodal transportation, Freight rail carriers, Tactical planning, Fullassetutilization policies, Intermodal shuttle works, Designbalanced service work design 1 Introduction Intermodal transportation forms the backbone of the world trade and exhibits significant growth. The value of multimodal shipments in the ., include parcel, postal service, courier, truckandrail, truckandwater, and railandwater, increased from about 662 billion US dollars to about trillion in a period of nine years(1993 to 2020[31]). In the same period, the total annual world container traffic grew from some millions of TEU(20 feet equivalent container units) to almost 255 millions, reaching an estimated 304 millions of TEUs by 2020. Intermodal transportation involves, sometimes integrates, at least two modes and services of transportation to improve the efficiency of the doortodoor distribution process. The growth in intermodal traffic thus resulted in significant modification to the structure of maritime and landbased transportation systems as well as in major increase of the volumes and value of intermodal traffic moved by each individual mode. Thus,for example, in 2020, for the first time ever, intermodal freight surpassed coal as a source of revenue for major, Class I,. railroads, representing 23% of