Great Lakes - Saint Lawrence Seaway Simulation Studies. Volume 4. NETSIM II and PROSIM: A Waterway Simulation Package.

This report present a detailed description of a computer simulation package designed for the Great Lakes-St. Lawrence Seaway navigation system. The discussion is divided into three parts corresponding to the major components of the simulation package. Part I covers NETSIM II, the simulation program itself. Part II covers PROSIM, the statistical report generator for NETSIM II. Each of these programs is written in SIMSCRIPT and each is composed largely of subroutines which carry out processing for the various kinds of navigation facilities. This modular structure greatly simplifies the task of program modification. Part III describes four FORTRAN programs which have been provided to facilitate data preparation for NETSIM II. Detailed user manuals are included for all programs in the package. The model is addressed to the task of analyzing the performance of a waterway system under various structural and nonstructural improvements. The analysis is in terms of delays, congestion and utilization. The major feature of the model is its ability to simulate traffic flows which result from a given pattern of transport demand (commodity movements). (Author)
See also Volume 1, AD-A111 753.