近年来北美多式联运发展很快,美国的亨特(Hunt)与施奈德(Schneider)两家卡车运输公司利用铁路平车载运拖车和双层叠载列车开展多式联运,使铁路的联运运量在远程运输方面得以大量增加。但是在中短途运输方面,比如在运距为1000英里或800英里以下的货物运输中,托运人仍然青睐在速度和灵活性方面占 In recent years, multimodal transport in North America has been developing rapidly. Hunt and Schneider in the United States use multi-modal rail transport trucks and double deck trucks to transport intermodal railways The volume is greatly increased in the area of ​​long-distance transport. However, shippers are still favored for speed and flexibility in short and medium transport, such as freight transport at distances of up to 1,000 miles or 800 miles