Intelligent Traffic System: Implementing Road Networks with Time-Weighted Graphs
Hatem F. · InTech eBooks · 2013
As most kinds of applications need databases, Geographical Information Systems use what is called spatial databases.Spatial (from space) databases are databases used to store information about geography like: geometries, positions, and coordinates.Also they include spatial operations to be applied on such kinds of data like distance, area, perimeter, direction, and overlap of geometries.Who might use spatial databases?The following do use spatial databases:• Mobile phone users: where is the nearest gas station?• Army field commander: enemy movement?• Insurance risk manager: houses to be affected?• Medical doctor: same treatments in some area?