Design And Implementation Of Wheelchair Accessible Travel Application In Wuhan City

With the continuous development of China’s economy and the continuous improvement of people’s living standard,facing the current situation of our large disabled population base and accelerated aging of the population,in response to the increasing urgent demand for barrier-free travel for disabled and elderly people,how to organize and manage the limited resources of barrier-free facilities,help them access and use these resources and assist their travel is a major practical problem that must be solved.In this paper,we design and develop an application to assist wheelchair accessible travel within the main city of Wuhan based on the ideas and practical guidelines of software engineering through the integration and organization of multi-source data and path planning algorithms.The main research work and results are as follows:(1)A graph database Neo4j based accessibility data organization method is proposed to integrate and associate the existing metro accessibility data with the collected bus accessibility information,using the graph database Neo4j as the main data management form,which can effectively deal with the inconsistency,incompleteness and misconfiguration of the existing applications in terms of data,and also reserve space for the subsequent automation of data collection,management and orderly expansion of the business.(2)An improved A~*algorithm for wheelchair accessible travel path planning is proposed,which can achieve smooth transitions on different routes during wheelchair travel,improve travel efficiency and save travel time by supplementing and improving the existing path planning algorithm for the lack of effective information between interchange stations.(3)An application to assist wheelchair accessible travel within the main city of Wuhan was designed and implemented,which is divided into 3 modules:data,application and management.By using Neo4j to reorganize the accessibility data,we have avoided many disadvantages in data to a certain extent;by using the improved A~*algorithm for route planning,we have relieved the anxiety of wheelchair users about the lack of information in travel;by developing the backend management system,we have effectively reduced the overall maintenance cost of the application and improved the operational efficiency.