A bus speed control method to improve bus punctuality

Abstract

Disclosed is a bus driving speed control method for improving a bus punctuality rate. The method comprises: by taking signal lamp timing along a bus route, a vehicle average driving speed and a maximum speed allowed by a road section as constraint conditions and the bus punctuality rate as an optimization target, establishing a mathematic model; acquiring road space information of each road section, i.e., variable information related to by the model established in step one; substituting the acquired information into the established model for solving an optimum scheme, i.e., solving an optimum driving speed of a bus at a road section with good traffic conditions, wherein the road section with the good traffic conditions satisfies Vi<->>Vmi, Vi<-> is a vehicle average speed of an i-th road section, Vmi is a critical speed of the i-th road section, i.e., the speed when traffic flow reaches the maximum, and a bus driver takes this speed as a timely-adjusted driving speed; setting information updating frequency f to be information updating frequency in unit time, and updating the acquired information and a model calculation result for every updating period T (T=1 / f) until the bus arrives at a next station; and after the bus stops at a station and before the bus starts to advance, restarting a data updating process, and at the same time, the driver adjusting his driving speed along with scheme change.

Description

technical field [0001] The invention relates to the technical field of public transport management, in particular to a method for improving the punctuality of public transport by controlling the running speed. Background technique [0002] With the development of the economy and the accelerated pace of life, people are more and more concerned about travel efficiency. Therefore, the punctuality rate of buses directly affects the travel choices of residents. If the punctuality rate of buses is too low and the travel time of passengers cannot be guaranteed, people will give up. Travel by bus. In reality, it is difficult to guarantee the punctuality rate of public transport. Due to the influence of road conditions, weather conditions and the line itself, many lines often have large intervals, running groups of cars, and stringing cars. [0003] At present, there are not many studies on real-time adjustment of delays at home and abroad. The few studies mainly focus on the reliab...

AI Technical Summary

Problems solved by technology

These methods are based on the experience of dispatchers to make a rough adjustment to the bus operation that has already been delayed. The real-time dynamics are poor, and they cannot cope with all complex and changeable traffic conditions.

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