Guideway database design in CBTC system simulation

This Paper introduced the GD (guideway database) design in CBTC (Communications-Based Train Control) system simulation in the scopes of data definition, data input, data parsing and data optimization. Based on directed graph, a standard mathematical topology representation, any location and physical equipment can be defined as a unique vector, such as <;edge, offset>;. The design balances accessible operation and accurate specification, and conforms to usage as well as to the rules of directed graph. Complicated guideway conditions are considered, including broken chain, curve and grade section. Guideway design optimization is discussed and the simulation illustrates the relevance to applications.