Study On The Guidance System Of The Large Car-park

With the rapid development of economy and incensement of vehicle ownership in our country,parking has been a growing problem which needs urgent solution in large and middle-sized cities.As the capital of China,Beijing is one of the greatest financial centers.Till the end of 2014,the current parking areas for motor vehicles is about 2.9 million.But the shortage of basic parking areas and travel parking areas is up to 3.8 million,which at the same time is increasing annually.Another reason for the difficulty of parking is the low utilization of parking lots leading to the idle and waste of resources.To enhance the information symmetry in the parking guiding systems between parking lots and drivers who need parking is an effective way to solve the parking problem.The current research on parking guiding systems focuses on passive guiding which is the external factor of the parking lot without enough attention to the active guiding for the parking areas within the parking lot.Meanwhile,research on the parking areas in the parking lot mainly based on the static attributes like parking lot itself and parking areas,ignoring the dynamic change of internal path in the parking lot.So the outcome of these research can not be applied well into reality.This essay first overviews the research on parking guiding systems at home and abroad.Then it puts forward the idea that parking guiding systems in large parking lots can offer accurate parking area guiding service for cars so they can be parked quickly,according to the analysis of parking information requirement when drivers going out.And for the function of parking guiding service,it designs and constructs the basic frame of parking guiding systems in large parking lots,elaborating every function and working process in subsystems.It analyses the algorithm for the shortest path,selecting Dijkstra’s algorithm as the most suitable one for the shortest path,and optimizing it.On the basis of the research and analysis for elements influencing parking behavior,combining path distance,driving quality and occupation of parking areas on two sides,providing the best parking selection model.At last taking the XieXing Starlight time square for example,applying the results of research into practical design and test simulates.