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thumb|upright=1.1|Trams at Parvis de Saint-Gilles/Sint-Gillis Voorplein premetro station|Saint-Gilles/Sint-Gillis station with partially low platforms in [[Brussels.]] thumb|upright=1.1|Low platform section for trams at Duisburg Hauptbahnhof Stadtbahn station. thumb|upright=1.1|Low platform station for trams in Vienna during transformation. A third rail and emergency stairs from the future high platform have already been installed. thumb|upright=1.1|Monte Compatri-Pantano (Rome Metro)|Pantano station before conversion.
thumb|upright=1.1|Trams at Parvis de Saint-Gilles/Sint-Gillis Voorplein premetro station|Saint-Gilles/Sint-Gillis station with partially low platforms in [[Brussels.]] thumb|upright=1.1|Low platform section for trams at Duisburg Hauptbahnhof Stadtbahn station. thumb|upright=1.1|Low platform station for trams in Vienna during transformation. A third rail and emergency stairs from the future high platform have already been installed. thumb|upright=1.1|Monte Compatri-Pantano (Rome Metro)|Pantano station before conversion.
Premetro (or pre-metro) is a type of light rail designed for eventual conversion to a full rapid transit (also known as a metro). These systems typically include infrastructure such as tunnels, viaducts, and dedicated rights-of-way to separate them from other traffic, built to metro standards with wider curves and gentler gradients than conventional light rail lines. However, they often include sections without full segregation, limiting immediate conversion. Premetros are usually operated with light rail vehicles or trams until an upgrade is implemented.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).