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Traffic congestion has become a major problem in today's society. It may cause a great waste of material and human casualties. We think the fixed-time-state traffic light control scheme is one important reason. An intelligent traffic light control scheme is necessary in order to give a solution to this problem. The paper proposes a model to describe a road cross. In terms of dynamic and real-time...
Taking urban traffic trunk to control for the study, it points out a number of shortcomings of the present trunk control method and puts forward the method that for the urban routes traffic characteristics, in a certain period of time, the route cycle and the phase between each two intersections remains the same, while the split is real-time adjusted by certain intersection controller, web-based environment...
Responding to the Green Transportation requirement for urbanization nowadays, a new set of 3E criteria, which takes into account efficiency, economy and environment effects, to evaluate intersections operational traffic status is proposed first in this paper. Then, we establish an AHP-based evaluation architecture for intersections with multi-level and multi-objective functions, on the basis of the...
The green ratio model of Webster ignores the difference of traffic flow in different traffic state. The paper introduces an idea of traffic priority. It deals out more green time for the phase which has the highest traffic demand in oversaturated traffic, so as to prevent and clear off the crowded traffic flow as soon as possible. Each phase gets the priority by turns, so the improved green ratio...
To meet the need of vehicle management and control in the vehicle transportation enterprise, the paper puts forward the strategy and configuration model of system integration based on the middle layer, discusses general function of the integrated system, conversion and update of the integrated information, and the solution to working process of integration control.
This paper analyzes the influence factors of sub-zone combined and separated in adaptive traffic signal control system and attempts to fix quantify influence factors that act as the performance indices. Then analyzes the intersections correlation coefficient confirms the ideal state and negative state of sub-zonepsilas combined and separated. Collect VISSIM data as datum mark to compute adjacent intersectionpsilas...
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