Study On The Capacity Of Method Of Pre-signal Coordination And Control Of Road Intersection

Pre-signal control method is mainly used for bus priority and control left turn vehicles of intersection, and pre-signal setting needs to satisfy some necessary conditions. Then researched the coordinated control method of pre-signals based on bus priority, coordinated control method of double pre-signal intersection and coordinated control method of pre-signal intersection based on through and right-turn shared lane, and the capacity are analyzed.First of all, based on the basic principle and layout of the pre-signal control method, clearing the objectives and principles of pre-signal control, analyzed the control rules of the vehicle stop, summarized the necessary conditions of setting pre-signal of the intersection.Secondly, based on the existing research, through the analysis of characteristics of the straight entrance right turn shared lane, this paper sets up delay model for the approach after the signal control method using, and compared without the pre-signal setting case, and then analysis the effect of the methods.Thirdly, based on the previous research, pre-signal control method was studied based on the bus priority, on the basis of the analysis of delay, the vehicle fuel consumption model of the vehicle is reduced, and comparative analysis.Then, The paper introduces the basic concept and principle of double intersection control, signal for a driver to run on the lower bifurcation point when the conversion time is studied, analysis of the pre-signal control method based on it.Finally, through examples, we verified the effectiveness of the pre-signal control method under the bus priority or based on the through and right-turn shared lane.