Blockchain Technology and Simulation Case Analysis to Construct a Big Data Platform for Urban Intelligent Transportation

The traditional architecture of an urban intelligent transportation data network has a hierarchical distribution. In this architecture, organizations independently manage and upload data, thereby making data sharing difficult to achieve. To solve this problem, a big data platform of urban intelligent transportation was built in this paper by using blockchain technology. In this platform, block data are used as the core, thereby removing the centralized data management of each organization. This method also completely changes the modes of data acquisition, processing, analysis, and storage and fully realizes platform-based large data sharing, decentralization, and distributed computing of the multi-source system of urban intelligent transportation. The big data platform of urban intelligent transportation based on blockchain technology should also solve several key problems, including the unification of data from different sources, the unified supervision and operation of data, and the compatibility with other advanced technologies. To solve these problems, the key technologies for large data platforms were evaluated from a technical perspective. These technologies include the unified technology of each node, the supervision and operation of multi-technology sharing, and the technology compatibility with vehicle networking and vehicle-road collaboration. By taking the problem of traffic flow data loss in road networks under haze as a simulation case scenario, the application of block chain technology was described. By taking some road networks in Beijing as examples, the simulation results show that under the traditional intelligent transportation data network framework, given the limitations of equipment installation layouts and subordinate management organizations, the coverage of road networks for data acquisition is greatly affected by the objective environment, which may lead to data loss. The data acquisition system should also run independently, thereby preventing data sharing at the bottom of the network. The big data platform architecture of urban intelligent transportation based on blockchain technology addresses the limitations of various organizations, realizes data sharing in urban intelligent transportation, and solves the data loss problem under the traditional network architecture.