Our cities have been continually growing at an uncontrolled rate leading to the problem of traffic congestion, which has discernable effects on all the aspects of sustainability, be it social, environmental or economical. This continual shift of increasing size of centre and decreasing size of periphery poses huge sustainability challenge of meeting the consumption demands. We presently face the most unprecedented times in terms of the pace at which our natural resources are getting consumed. It is clear that replenishing some of these resources is totally out of question. On the other side of the coin, the advances of human technology have provided its greatest gift of information & communication technology (ICT). Today we have access to data from any point of the world to anywhere. There is a growing need to use this data and information with a holistic view to build more Intelligent Transport Systems. In our paper we discuss how the advent of ICT can have an impact on bringing a sustainable transportation system. The work is divided in two folds, by first understanding the direct role of ICT in transport sustainability and then observing the direct correlation between usage of ICT and travel demand. The problems of traffic congestion and its solutions like congestion pricing have existed in practice since ages; the perspective which we add to it is the role of ICT in making it better. The greater perspective that is being researched here is at an absolute fundamental level and takes us to the question if and how ICT can work on root level challenges, like finding methods to have a better traceability without compromising on privacy, changing driver behaviour patterns and stopping the expansion of centre & contraction of periphery.