Ballast De ballast bestaat uit steenslag en zorgt voor de stabiliteit van het spoor. Download mediakit Ballast (10.75 MB) Download small version Download small version Download large version Ballast (13.42 MB) Download small version Download small version Download large version Ballast (16.39 MB) Download small version Download small version Download large version Ballast (3.26 MB) Download small version Download small version Download large version Ballast (6.94 MB) Download small version Download small version Download large version Ballast (3.09 MB) Download small version Download small version Download large version Ballast (3.36 MB) Download small version Download small version Download large version