German Unity Transport Project 8

The Bögl ballastless track system

The ballastless track system Bögl consists of prefabricated slab tracks which are coupled in longitudinal direction. This construction method leads to a homogenous trackway with a good long-term behaviour. The system can be used on earth structures, in tunnels and troughs as well as on bridges.

Facts and figures

Construction height (from OK HGT to OK rails):	474 mm
Slab length (System length: nominal 6.5 m):	6,45 m
Slab width:	2,55 m
Slab height:	0,20 m
Concrete class:	(B 55) C45/55
Rail supports:	10 pairs per slab; spacing 650 mm
Prestressing:	transversal
Longitudinal coupling:	GEWI

Bögl ballastless track system (Foto: DB AG)

Advantages

• Service and maintenancefree track system with high resistance to transverse and longitudinal displacement
• Constantly high quality and accuracy of manufacture due to prefabricated construction method
• No delays on account of setting times of in-situ concrete at the building site
• Shrink and creep processes in the concrete have faded to a large extent at the time the slabs are installed
• Precise track bed without readjusting
• High driving comfort
• Low wear and tear on the rolling stock and the rails
• Unlimited correction options in case of settlements
• Quick commissioning or renewed trafficability of the rails after correction/repair measures
• Every type of approved rail fastener can be used
• Excellent life cycle cost covered by studies

(Source: Max Bögl Group)

Schematic drawings of the Bögl ballastless track system

Structure of the Bögl ballastless track system (Graphic: Max Bögl Group)

Structure of the Bögl ballastless track system (Graphic: Max Bögl Group)