© Foto: „Abstract car in the tunnel trajectory“, hxdyl / stock.adobe.com

© Foto: „Engineer under inspection and checking construction process railway switch“, APchanel / stock.adobe.com

© Foto: „Strasse und Bahnlinie von oben gesehen“, Fotolyse / stock.adobe.com

© Foto: „Train on railway in motion.“, MaxSafaniuk / stock.adobe.com

© Foto: „Project management team updating schedule or planning on computer, business“, PNicoElNino / stock.adobe.com

© Foto: „Female green lizard on railway“, Alois / stock.adobe.com

© Foto: „Stack of documents placed on a business desk in a business office.“, JaRiRiyawat / stock.adobe.com

© Foto: „Regionalbahn passiert den Staffelsee nahe Murnau in Oberbayern“, ARochau / stock.adobe.com

© Foto: „Gleisarbeiten mit den Liebherr A 922 Rail Litronic Zweiwegebagger“, brudertack69 / stock.adobe.com

© Foto: „Railroad tracks lying on concrete sleepers, filling large pieces of rock, visible system on the axle counter detection unit and pavement.“, Michal / stock.adobe.com

© Foto: „Railroad noise barrier. Acoustic wall reducing train sound. Soundproof protection fence along the railway.“, Stadtrandfoto / stock.adobe.com

© Foto: „Herrschaftsbuck-Tunnel“, Jürgen Stresius / imagocura.de