Sustainable Transportation Infrastructures: Series 2 ISBN: 978-967-2216-77-3 41 Chapter 4 Pedestrian route choice of vertical facilities at KLCC underground train station Tee Xin Lei, Nur Sabahiah Abdul Sukor, Noorhazlinda Abd Rahman, Munzilah Md Rohani and Sitti Asmah Hassan 4.1 Introduction Route choice is the pedestrian’s decision of optimal path between an origin and a destination among a set of alternatives. Pedestrian route choice is dissimilar with drivers’ route choice as the pedestrians have higher degree of freedom and randomness in choosing routes. Meanwhile drivers route choice always constraint of direction for maneuver, space of movement, fixed road and has restricted traffic rules. The understanding on pedestrian route choice behaviour is necessary for planning and design of pedestrian walking facilities especially in rail transit stations that serve thousands of daily ridership. LRT Kelana Jaya Line has recorded the highest ridership among the existing rail transit in Klang Valley [1] and has the most direct impact from the Malaysia government with the effort of improving rail network system. Recent projects that have been launched include Light Rail Transit (LRT) Line Extension Project (LEP) connecting Ampang Line and Kelana Jaya Line by Putra Heights Station as interchange [2] as well as Klang Valley Mass Rapid Transit Project (KVMRT) which is MRT Line 1, Sungai Buloh to Kajang Line (SBK Line) [3]. Government’s initiative on public transport results in 12% of the overall daily ridership for existing urban rail in 2017 comparing to 2016 and even reached 30% after opening of MRT full line and the remarkable increment has happened at LRT Kelana Jaya Line with 26% increase of daily ridership [1]. In addition to that, Kelana Jaya Additional Vehicle (KLAV) project has added new generation trains to LRT Kelana Jaya Line to reduce the waiting time and increase passenger capacity by 20% [4].