Research On Single-line Bus Control Based On GPS Data

With the continuous improvement of China's economic level,the scope of urban construction continues to expand,and the subsequent increase in the number of residents' travel has brought enormous burdens and congestion to the urban road network.As an important part of public transportation,urban public transport undertakes a large number of residents.However,at present,most cities in China are plagued by the phenomenon of bus trains during operation,which seriously affects the service quality of buses and the travel experience of passengers.Therefore,how to propose a scientific and effective bus management control method is to alleviate the problem of serial vehicles.The essential.The bus control strategy is applied to improve the reliability of the bus service,and the phenomenon of the car is alleviated by adjusting the dwell time or the speed of the vehicle at the station.Recently,with the wide application of vehicle positioning data AVL,the real-time control strategy based on AVL has been widely concerned by scholars.This paper studies the real-time control strategy of public transportation.The main results are as follows:(1)Using the historical GPS data measured by the city bus,we calculate the time interval of the continuous bus passing through a bus stop,and compare the actual head time interval with the planned departure interval to calculate the head gap adhesion rate HAR for Evaluate compliance with the actual headway time relative to the planned value.The normal distribution,Weibull distribution and Wakeby distribution were used to fit the HAR data of each site.The results show that the Wakeby distribution has the best fitting effect.On this basis,we calculate the probability of cross-carriage at each site,to evaluate the severity of the phenomenon of shunting at each site,and identify the bus stops that need real-time control.(2)Based on the analysis of the control scheme of the experienced jump station of Shaoyang Public Transport Company,an improved jump station control scheme is proposed.The performance of the improved jump station control scheme is compared by Python numerical simulation.The results show that the variance of the headway distance increases with time,and the trend of increasing the rear differential of the jump station control scheme will be significantly slowed down.The variance of the headway before and after the control is compared,and the variance of the headway of the terminal is found.It has dropped by 55.46%,indicating that the control scheme can significantly improve the regularity of bus operation and reduce the occurrence of serial vehicles.The bus bunching and station jumping control algorithm proposed in this paper can control the running state of the bus in real time according to the GPS data,and the control effect of the scheme is verified in the numerical simulation,which has good practicability.