Study Of Minimum Conflict Parking Optimization In Mechanical Three-Dimensional Parking Lot On The Basis Of Tetris Strategy

With the deepening of the reform and the steady growth of economy,the conflict between sharp increase in car ownership and increasingly scarce land resources has been intensified.The scarcity of parking land resources makes it more important to increase the parking(garage)and to improve its use efficiency.The mechanical three-dimensional parking lot can make the best use of the scarce land space,alleviate the parking problem,and get the policy support from the government.To study the parking optimization method is of great significance to improve parking efficiency and turnover rate in three-dimensional parking lot.By referring to the research literature and results,this paper summarizes and analyzes the research history of mechanical parking lot,parking method and Tetris strategy,as well as the research status at home and abroad.The study finds that the parking efficiency is low in the mechanical three-dimensional parking lot.Therefore,the optimization method of the minimum parking conflict based on the Tetris strategy is proposed in this paper.This paper analyzes the characteristics of different types of mechanical three-dimensional parking lot,selects one type mechanical three-dimensional parking lot,namely the vertical circular mechanical three-dimensional parking lot,which can be widely applied to transform existing planar parking lot.Firstly,based on the definition of parking conflicts,this paper analyzes the parking conflicts' types and characteristics in the three-dimensional mechanical parking lot,and quantifies the calculation methods of conflict time.Secondly,Tetris strategy is studied and the similarities and differences between the Tetris game and vehicle parking in the mechanical three-dimensional parking lot are analyzed in this paper.By defining the vehicle block and judgment method of the large and small vehicle block,the minimum conflict parking method based on Tetris strategy is proposed.And the calculation of time conflict by using the minimum conflict parking method is discussed.Thirdly,this paper introduces the parking lot's performance evaluation index and chooses the mechanical three-dimensional parking lot in a hospital in Wuhan as an example to evaluate and analyze the results of the modeling based on the minimum conflict parking method in view of Tetris strategy,queue parking method and shortest path parking method.This article verifies the advantage of the minimum conflict parking method based on the Tetris strategy and provides an efficient parking method for mechanical three-dimensional parking,which includes vertical circular parking lot.