Design of Freeway Traffic Block Multi-Dimensional Data Warehouse

Through analysis of large sample data of freeway traffic block event, the data source of freeway traffic block is found out and summarized. Based on that, this paper propose a national level, distributed, freeway traffic block multidimensional data warehouse (FTBMDW) , and present the concept model , logical model and physical models of the data warehouse. The purpose of the FTBMDW is to support inter-provincial and inter-regional freeway traffic block analysis with reliable data.