Showing papers on "Network traffic simulation published in 1970"
TL;DR: In this article, a reliability concept is considered in which telephone traffic is taken into account for a telephone network, and an analytic model of a simple network with parallel paths shows how telephone traffic can be included in the telephone network reliability analysis.
Abstract: A reliability concept is considered in which telephone traffic is taken into account for a telephone network. An analytic model of a simple network with parallel paths shows how telephone traffic is included in the telephone network reliability analysis. Examples are given to demonstrate the usefulness of this concept in the investigation of an optimum inspection policy for each path, and the effects of path age and failure rate on telephone network service.
4 citations
05 May 1970
TL;DR: A general urban traffic network simulation system has been designed and programmed to assist traffic engineers and planners in studying alternative solutions to traffic problems.
Abstract: One of the major crises which our cities must face is the problem of traffic congestion. Already, many areas are so congested that new roads seem to be the only answer. In densely populated areas, however, new roads are often unwanted because of the valuable land they use and are not the solution to today's problems because of the long time delay between planning and construction. Therefore, it is essential that cities obtain maximum throughput from existing roads before new construction is tried. A general urban traffic network simulation system has been designed and programmed to assist traffic engineers and planners in studying alternative solutions to traffic problems. The implementation consists of a set of macros which are used to describe the network, and a set of subroutines which perform the actual simulation.
2 citations
01 Dec 1970
TL;DR: Simulation experiments indicate that adaptive routing techniques can be effective in large communications networks.
Abstract: This paper is concerned with the behavior of an adaptive routing system in a large communications network. The adaptive routing algorithm described uses stochastic switching matrices to automatically find and complete the traffic paths through a system. A realistic network and traffic which were derived from military field exercises are used to illustrate the real time behavior of the algorithm. Simulation experiments indicate that adaptive routing techniques can be effective in large communications networks.
1 citations
10 Jan 1970
TL;DR: This traffic simulation method is somewhat different from the usual queueing theory approach in that traffic simulation is realized by stepping vehicles through the traffic network system in accordance with prespecified driver response criteria.
Abstract: : The need for better traffic control techniques has significantly increased during the past few years because of the rapidly increasing numbers of vehicles in American cities. A modeling method for traffic simulation is presented which promises to be a valuable tool for providing this needed control. This traffic simulation method is somewhat different from the usual queueing theory approach in that traffic simulation is realized by stepping vehicles through the traffic network system in accordance with prespecified driver response criteria. Modern control theory was used in implementing this method, thus rendering it adaptable to standard control systems theory for traffic control applications. A computer program was developed for this model in which systems programming techniques were employed to minimize memory and computer requirements. (Author)
1 citations