The technological and informational revolution that the world is witnessing today has changed many administrative concepts, which requires effective information systems that meet the information needs of transport institutions, especially with the continuous transformations in their environments and the need for quick and correct decisions. There has been a revolution in the way is dealt with information and how to deal with it, and has become one of the core resources of the institution and its competitive weapon in dealing with the environment. The aim of this research is to identify intelligent transport systems, general objectives and the most important components of intelligent transport systems. We will discuss the techniques used for these systems and highlight the contribution of intelligent transport systems to reducing environmental pollution,Such as a Global Positioning Systems(GPS) and Automated Vehicle Location (VAL). We consider the contribution of these systems to reducing the negative impacts of the environment, encouraging modern systems of sustainable transport and using more environmentally friendly means, thereby reducing air pollution