Swiss SBB and Pandrol Procedures
By F.A. Wingler, April 2022
Booted Rail-Support Block technology for Non-Ballasted Tracks (NBT) is of interest in India for the new Katra-Banihal Line of the USBRL Project. The demand has been for a system with straight and as well curved Non-Ballasted Track (NBT), which allows adjusting, repairing and retrofitting of tracks. The NBT technology with rubber booted single rail support blocks fulfils those demands. Swiss Federal Railway, SBB, and as well Pandrol have developed procedures to retrofit booted block NBT with concrete blocks. Swiss SBB has given its heavy used Zurich Airport Line a second life with its procedure. For retrofitting the Barcelona, Spain, Metro, Line 5, the Pandrol procedure has been used. Both procedures are described in the following PDF paper, which can be free downloaded:NEW LIFE FOR BÖTZBER-STEDEF, LVT, SONNEVILLE NBT