عنوان مقاله [English]
نویسنده [English]چکیده [English]
Global Positioning System (GPS) and Geographic Information System (GIS) are considered as complementary technologies regarding increasing data’s level of quality and abilities of user systems. Application of GPS in transportation, especially those GPS tracers installed on cars, provides the possibility of instant positioning of vehicles such as ambulances, fire engines, police cars, etc. information presented by tracing system is specially of great importance when we deal with cases in which there is need for immediate respond considering the position of vehicle. Capabilities and usefulness of this system reach their peak if it is combined with geographic information through a GIS.