Urban streets demonstrate a hierarchical structure in the sense that a majority is trivial, while a minority is vital [1]. Jiang claimed that “coherent urban streets demonstrate a scaling law and characterised by the 80/20 road hierarchy principle, i.e. 80% of streets are less central (below the average), while 20% of streets aremore central (above the average); out of the 20%, there is 1% of streets that areextremely well central” [1]. Recent works on structural analysis of urban streetnetworks in terms of topological centrality in European and USA cities done byYang et al. [2], Hillier et al. [3], Huang et al. [4], Levinson [5], Wang et al. [6], Gaoet al. [7], have also supported the above claim. Accordingly, network centrality isused as a strategic planning tool to identify the structural coherence of transportnetworks. Inspired by the previous works, this study examines the structuralcoherence of the road network of Colombo city from the perspective of topologicalcentrality.

Jaysinghe, A., De Silva, C., Sano, K., & Nishiuchi, H. (2016). A network centrality application: examination of structural coherence of Colombo road network [Extended Abstract]. In T.L. Gunaruwan (Ed.), Proceedings of 1st International Conference on Research for Transport and Logistics Industry 2016 (pp. 27-30). Sri Lanka Society of Transport and Logistics. https://slstl.lk/r4tli-2016/