Thessaloniki Regional Railway

The Thessaloniki Regional Railway (Greek: Περιφερειακές Γραμμές Θεσσαλονίκης, romanized: Perifereiakés Grammés Thessaloníkis), formerly the Thessaloniki Suburban Railway until 2023 (Greek: Προαστιακές Γραμμές Θεσσαλονίκης, Proastiakés Grammés Thessaloníkis), is a three-line Proastiakos commuter rail service connecting the city of Thessaloniki with its metropolitan area and other regions beyond, including Imathia, Pella and Serres. Unlike the Athens Suburban Railway, the three lines served are rather medium-distance regional rail connections on three major axes towards Florina in the west, Larissa in the south, and Drama in the east.

Source: Wikipedia — Thessaloniki Regional Railway (CC BY-SA 4.0)