We could further improve our data analysis on additional roads to further affirm the validity and accuracy of our hypothesis.
For example, normalization of number of incidents is required. The data has to be adjusted to the volume of cars, to result a bias free rate of traffic incidents. Only then, a correct visualization of the heat map can be achieved.
Furthermore, a better measure of traffic "congestion" is required, as occupancy rate is only an implication but not a true measure of congestion. For further information, please see https://onedrive.live.com/view.aspx?resid=C1B6684C6B6C0C19!1439&ithint=file%2cdocx&app=Word&authkey=!AL_vWMM3DeW_fcs. Moreover, the data presented here only take account one road link (Kwinana FWY). The data can be scaled further on other roads. To visualize the data better, a time lapse animation of congestion heat map can be produced.