POS upgrade: Homburg–Bruchhof and Landstuhl–Kaiserslautern sections completed

Ausbaustrecke 23 (Saarbrücken–Ludwigshafen) is part of the Franco-German Paris–Eastern France–Southwest Germany (POS Nord) rail corridor, upgraded in several construction stages to a target speed of 200 km/h. Construction stage 2b covered the Homburg–Bruchhof and Landstuhl–Kaiserslautern sections, carried out as part of works running from 2006 to 2019, including track and overhead-line renewal, bridge refurbishment, and the new Vogelweh stop. No specific investment figure for this sub-stage is given in the available sources.