The construction of a light rail system in Tel Aviv has the potential to impact commuting patterns and accessibility of amenities. This study develops a method to assess the impact of the light rail system on urban diversity, using isochrones generated from public transportation and walking networks. Diversity maps were created for the existing and future situations, measuring the diversity of amenities within isochrones. Preliminary results show a slight increase in diversity along the light rail route, but further improvements to the classification system and validation are needed. The findings have implications for urban planning and transportation policy. Future research can focus on refining the method, incorporating additional data sources, and evaluating the light rail system’s effects on urban diversity.