The Kuala Lumpur City Hall (KLCH) has planted 100,000 trees along the main streets of the city centre through the National Economic Transformation Programme to make the city more liveable. This paper studies the reasons for its different establishments, and it determines the social and physical benefits to the pedestrian walkways through a further investigation regarding the morphological parameters used by the Landscape Department of KLCH. The outcomes indicated that the street vegetation morphology implemented is mainly to improve the social and physical condition of the pedestrian walkways, especially the safety of the pedestrians due to snatching and reckless crossings.