Students who drive and using mobile phones become a common sight these days. This causes lack of coordination contributing patterns of mobile phone usage while driving among educated young adults. A cross sectional study was conducted among students in Klang Valley whom participated voluntarily. The study found 66.6% of participants used mobile phone while driving and male driver were found to have used phones more often while driving on urban road. Results from this study provide information for policy makers in designing.; Keywords: Mobile phone usage behaviour, driving, young adult.; eISSN 2514-7528 © 2017 The Authors. Published for AMER ABRA by e-International Publishing House, Ltd., UK . This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning; Surveying, Universiti Teknologi MARA, Malaysia.