Pisa plans first modern tram route
https://www.railwaygazette.com/projects-and-planning/pisa-plans-first-modern-tram-route/57318.article
When we consider that total length of the tram route is 4.4km and it has 13 stations, average distance between each station is 367m. I think it is relatively short. To get passengers in this situation, frequent service must be needed.