| With the deeply process of urbanization in China, the problem of the traffic congestion has became a major problem that the second-tier city being faced. An analysis assistant system for solve traffic congestion problem is needed for urban traffic administration.According to the process of software engineering, this article designed and implemented a traffic condition analysis system with functions of data import, traffic index calculation, analysis and display. In terms of data import, this system take advantages of Zero MQ and various of buffer pools to imported the massive amount of real-time floating-car-data(FCD) into SAP HANA database. In terms of traffic index calculation and analysis, this system aggregated the floating car data into road-based traffic index with mainstream formula using SAP HANA, and it also provide an interface of short-terms time sequence predict for road average speed. In respect of traffic index display, system provide three methods of index diplay, which are map display, diagram display and matrix display, also this system used the map tile technology to display the map, it unproved the performance of map display.The main content of this thesis include:1. The correlation techniques are analyzed, including in-memory database, ETL and ZeroMQ, and key technologies such as short-term time sequence predict and map tile technology were proposed according to accuracy requirement and performance requirement.2. A requirement analysis was made from the aspects of functionality, calculation accuracy and performance. The system architecture, functions, physical structure and database tables was designed as a whole. Then, detail design and implementation of each module was porposed.3. A completed system test for business logic, calculation accurancy and system performance was made, and the test results were showed. It indicated that the design and implement method proposed by this paper was comformed to the system expected. |
PDF Full Text Request