# Bali mass transit development planning > Live situation record from CLSTR: https://clstr.news/situations/bali-mass-transit-development-planning > Updated: 2026-08-10T06:34:07.000Z. Sources: 4. Developments: 2. The Bali provincial government and Badung Regency administration are evaluating various mass transit options to address traffic congestion in southern Bali. Initial discussions included several alternatives such as subways, trams, and water taxis, alongside a Mass Rapid Transit (MRT) system. Officials have since decided to pivot away from the expensive subway project, which carried an estimated investment cost of $20 billion, in favor of an Autonomous Rail Rapid Transit (ART) system. The ART, an autonomous electric tram, is viewed as a more cost-efficient and technologically accessible solution. The proposed project aims to connect I Gusti Ngurah Rai International Airport to the Canggu tourism area, with construction targeted to begin in 2027. To support this transition, the provincial government is drafting a Gubernatorial Regulation (Pergub) to provide a legal framework for the project and the utilization of underground space, as current spatial planning rules do not yet account for these specific technologies. ## Timeline ### 2026-08-10: Bali shifts mass transit focus from MRT subway to Autonomous Rail Rapid Transit Bali is pivoting from a multi-billion dollar MRT subway project to a more efficient Autonomous Rail Rapid Transit (ART) electric tram system, with construction targeted for 2027. 2 sources. https://clstr.news/cluster/bali-shifts-mass-transit-focus-from-mrt-subway-to-autonomous-rail-rapid-transit ### 2026-08-07: Bali officials evaluate mass transit options including ART and subways Bali officials are evaluating mass transit options to combat congestion, with Governor Wayan Koster favoring Autonomous Rail Transit (ART) over MRT, while subways and water taxis remain under study. 2 sources. https://clstr.news/cluster/bali-officials-evaluate-mass-transit-options-including-art-and-subways --- Cite as: Bali mass transit development planning. CLSTR, https://clstr.news/situations/bali-mass-transit-development-planning