Of the roads into which a detour forks, two types are distinguished:

• - Main road: continues the layout of the previous road.

• - Deviated track: it is the one that differs from the previous route, so the train has to make a curve when taking it.

The biggest problem posed by the detour is the maximum allowable track speed of the diverted track, since it does not have a bank and the radius of the curve described is usually small. Therefore, the normal acceleration is very strong if long detours are not made. Recent technologies have developed new ways to solve these problems and collisions with the rail, creating mobile hearts and hare legs that join perfectly to the rail, giving the whole more stability.

Normally trains have to slow down to enter a diverted track, while they can continue at the same speed on the main track. For example, the Madrid-Seville LAV allows 300 km/h on a direct route and 160 km/h on a diverted route:.

In a conventional detour, at the crossroads between both routes, the train wheel has to pass through a section in which there is no rail, which causes the greatest problems when changing. To avoid this section, moving heart turnouts are used, which have moving parts in this area that allow complete continuity of the tread on both paths throughout the entire turnout.

Throughout the century, interlocking or lever booths proliferated. With these, a single switchman was allowed to control the changes of an entire section, in addition to being protected from weather conditions. The first in Spain was built in 1882 in the current Plaça de les Glories Catalanes, in Barcelona.

• - Wikimedia Commons hosts a multimedia category on Detour.

Of the roads into which a detour forks, two types are distinguished:

• - Main road: continues the layout of the previous road.

• - Deviated track: it is the one that differs from the previous route, so the train has to make a curve when taking it.

The biggest problem posed by the detour is the maximum allowable track speed of the diverted track, since it does not have a bank and the radius of the curve described is usually small. Therefore, the normal acceleration is very strong if long detours are not made. Recent technologies have developed new ways to solve these problems and collisions with the rail, creating mobile hearts and hare legs that join perfectly to the rail, giving the whole more stability.

Normally trains have to slow down to enter a diverted track, while they can continue at the same speed on the main track. For example, the Madrid-Seville LAV allows 300 km/h on a direct route and 160 km/h on a diverted route:.

In a conventional detour, at the crossroads between both routes, the train wheel has to pass through a section in which there is no rail, which causes the greatest problems when changing. To avoid this section, moving heart turnouts are used, which have moving parts in this area that allow complete continuity of the tread on both paths throughout the entire turnout.

Throughout the century, interlocking or lever booths proliferated. With these, a single switchman was allowed to control the changes of an entire section, in addition to being protected from weather conditions. The first in Spain was built in 1882 in the current Plaça de les Glories Catalanes, in Barcelona.

• - Wikimedia Commons hosts a multimedia category on Detour.