摘要
我国是公路交通多事故国家,因此对公路交通的研究显得十分重要,应用计算机模拟的方法分析公路交通流量是研究公路交通的一条很好的途径。本文通过模拟的方法,分析了双向双车道公路的超车特性——延误、车速、超车次数。结论指出:我国双向双车道公路通行能力不大于600辆/小时。
Described briefly in this paper are the elementary concept of EDI,its constituents,communication methods,communication agreements and telegram criterie,the maintaining of secrets of telegrams as wall as the pro- blems of laws concerned.The situations of EDI in promoting of trade and tran- sportation industries and its practical examples are shown.This paper also te- lls of key reasons which have had influences on the development and making use of EDI in the field of trade and transportation industries and suggests a guide to the devolopment and making use of EDI.
出处
《交通与计算机》
1992年第2期37-42,49,共7页
Computer and Communications
