This session will present two complementary analytical approaches developed under ADB RETA 58399 to understand Low Emission Zone (LEZ) feasibility in Southeast Asian cities: an LEZ Maturity Assessment framework for evaluating institutional and technical gaps and identify pathways to readiness, and a GPS-enhanced transport and emissions model for baseline assessment and scenario simulation.

The session will illustrate real-world examples of enabling factors for LEZ success from Seoul and Jakarta, highlighting successes and challenges in inter-agency coordination, stakeholder engagement, public transport access, and staged implementation strategies.

By the end of the session, participants will:

1. Evaluate city and industrial area LEZ maturity using a structured framework that identifies gaps and priorities for action.
2. Understand how preliminary modelling provides evidence-based insights into traffic patterns and the effectiveness of policy interventions in reducing transport-related emissions, including LEZ, freight “green lists”, on-shore power at ports, and bus electrification.
3. Recognize where LEZ policies sit in the Avoid-Shift-Improve framework, and the critical role of governance, data integration, and complementary public and non-motorized transport measures in enabling successful LEZ implementation.