The Research On Reliability Of Trunk Road Signal Coordination Control Effect

Urban road traffic,as a structural product of the rapid advancement of urbanization,the over-saturation of vehicle ownership and the series of traffic congestion problems caused by it have caused a significant impact on the further development of the city.In order to solve the traffic congestion problem better,many cities in China take the solution of coordinating and controlling of trunk signal.However,the effect of trunk signal coordination control will be affected by many factors,such as traffic flow,driving speed,natural factor and human factor,etc.The existence of above factors will affect the possibility of achieving the effects of trunk signal coordination control in varying degrees,that is,the inherent reliability of the trunk signal coordination control effect.In addition,even if the inherent reliability is high,whether the trunk signal coordination control effect could be achieved in actual operation is still unknown.It is mainly depends on the operational reliability of trunk signal coordination control effect,which is mainly affected by the realization degree of trunk coordinated effect.This paper mainly studies the reliability of the trunk coordination control effect through inherent reliability and operational reliability.Firstly,this paper puts forward a new connotation of trunk coordinated control effect reliability by analogizing the reliability of industrial products.Then,combined with the analysis of trunk coordination effect,the characterization parameters of the reliability of trunk coordination control effect are selected,and the influence of characterization parameters on reliability is analyzed.Finally,through the above analysis,this paper establishes a evaluation model of reliability.The innovation of this model lies in that on the basis of the new connotation of reliability,the reliability of the coordination effect is calculated by the influencing factors and the evaluation parameters of the trunk coordination effect,which shows the reliability degree of the trunk coordinated control effect.This paper verifies the scientificity and rationality of the model through instance analysis,which has high practical and popularizing value in the following practice of trunk coordinated control engineering.