#^as travel time, a new demand is computed and consequently the flow in link and travel time will be modified again - the quantities of flow coefficient which cause frequency and then lead to chaos, are acquired. Lyapunov exponent, bifurcation and attractor diagrams are used to show the chaotic situation of the system.┤s modification coefficient and flow coefficient, it is possible to prepare a situation in which, the network faces the chaos and these three methods do not result in equilibrium. In this step, the chaos phenomenon is illustrated by time series diagrams, and besides, the Lyapunov exponent is used. In the next step with in a different approach, by defining two recursive formulation which are controllers of the behavior of the same network, by using the performance equations )travel time( based on flow and travel time in a link so that the basic variable converts to travel time or flow by using performance equation or its inverse, then by putting the result time equivalent to network┤s time length, rout┤s behavior, it is represented that by changing the quantities of some parameters such as lag┤s method in a two link network with variable demand, and by simulation of the network┤necessity, online and real time information of dynamic models network received specific attention. By advent of chaos concept and considering complications of traffic behavior, many researches have studied the occurrence of chaos in dynamic assignment, using complicated mathematical formulas or involving chaotic maps and stochastic variables. In this study in the first step by considering three classic solutions for assignment problem, including user equilibrium with simple iteration, Logit model and Jin ┤and managers ┤The purpose of all traffic models appears in their last part which gets through assignment problem. So, the researchers are always searching for more accurate and realistic solutions of this problem. According to the traffic engineers
یادداشتهای مربوط به پایان نامه ها
کسي که مدرک را اعطا کرده
گروه عمران
نظم درجات
کارشناسی ارشد
جزئيات پايان نامه و نوع درجه آن
رشته مهندسی عمران گرایش برنامه ریزی حمل و نقل