Majeed S, Batool Z. Identification of Factors Affecting Modal Shift in Lahore : Factors Affecting Modal Shift in Lahore . PPASA [Internet]. 2021 Apr. 29 [cited 2025 Dec. 31];53(4):373-9. Available from: https://www.ppaspk.org/index.php/PPAS-A/article/view/255