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Programs for Road Network Planning

出版	Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, 1978
URL	http://books.google.com.hk/books?id=Pe-tN6xiHT4C&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN

註釋This paper describes four computer programs developed to assist logging engineers to plan transportation in a forest. The objective of these programs, to be used together, is to find the shortest path through a transportation network from a point of departure to a destination. Three of the programs use the digitizing and plotting capabilities of a programable desk-top calculator system to conveniently enter and store a numerical description of the network to he analyzed. The fourth program solves the problem by an efficient optimization algorithm. The BASIC language programs are described through an example problem, and complete listings are provided.