Enhancing Commuter Experience and Environmental Sustainability: Portulaca Grandiflora on Modular Green Roofs at EDSA Carousel Station

Metro Manila’s growing urban sprawl has led to significant environmental and health challenges, particularly in busy transit corridors such as EDSA. The GREENPATH initiative proposes a sustainable, scalable solution through the integration of modular green roofs at key BRT stations, starting with the Main Avenue Station in Cubao. Utilizing Portulaca grandiflora, a hardy plant known for its drought resistance and pollutant-absorbing properties, the initiative aims to combat urban heat island effects and enhance air quality. This nature-based solution aligns with national sustainability policies, including the Philippine Green Building Code and the Build Better More Infrastructure Program. Early findings from the pilot site show that the green roofs can reduce surface temperatures by up to 20°C and effectively filter harmful pollutants like nitrogen oxides and particulate matter. Surveys conducted among commuters indicate that the initiative improves their travel experience by providing aesthetic and thermal relief. The proposal also includes the use of IoT technology for smart irrigation and plant health monitoring, ensuring long-term system sustainability. GREENPATH's interdisciplinary approach offers a promising model for integrating green infrastructure into Metro Manila's urban transport system, contributing to climate resilience, commuter satisfaction, and sustainable development.