level junction

Under cross is understood on the railroad:

• The height- free intersection of two railroad lines or tracks at different levels with the help of a cross- building,
• Same-height track crossing of two railroad tracks with the help of special designs of track,

Free crossing height

When crossing structure is called a railway bridge that crosses another railroad or a track. Cross the bridge, a road, a path or a place, it is called a railroad overpass. The advantage of the height- free intersection by a crossing building is that the rail vehicles can not obstruct or endanger other on two railway lines or sidings.

Track intersection

Special track designs allow railway vehicles the same level crossing of another transverse track without interruption of movement, but the two routes can not be driven simultaneously. The height same crossing of two tracks is possible with the following facilities:

• Track intersection without moving parts. It is robust and very inexpensive to manufacture and provision, compromised as a result of the unavoidable gaps in the track crossing track but clearly the driving comfort. A track crossing with no moving parts work only when crossing the tracks in the not too acute angle.
• Intersection with a flat groove frogs. It is mainly found in trams. Here, the vehicle wheels are carried away by the use of flat grooves on their flanges on the track gaps. A special form of this mating type is often located at level crossings of trams railways. Here, the rails of the railway lines are free of interruption while the trams are carried away on their wheel flanges of the railway tracks.
• Flat crossing with double movable frog points, they are referred to in Switzerland as Gleisdurchschneidung. It is used at a very flat angle of crossing. This is usually on multi-pronged branch points of the case when the branching track must be passable at high speed. Without the moving double frog points the unguided place in the double crossings for safe operation is too long. Flat crossings of this type are expensive and elaborate entertainment devices, but offer away a seamless continuous track on the track to cruising.
• Kreuzungsweiche. It not only allows the crossing of two tracks, but depending on the type of Kreuzungsweiche - simple diamond crossing or double slip switch - even different ways to track change.

Catenary

Overhead lines must be carried out on non- acute- track crossings particularly (→ overhead lines ).

Intersection (round plate)

Intersection ( spacer)