Editing Roller coaster (section)

==== Block system ====
Most large roller coasters have the ability to run two or more trains at once. 

The block system prevents these trains from colliding. In this system, the track is divided into two or more sections known as blocks. 

* Only one train is permitted in each block at any given time. 
* There is a section of track at the end of each block where a train can be stopped if necessary. 
** Examples include block brakes, the top of a lift hill (that can stop) and the station (train will not dispatch until the next block is clear).
* Sensors detect when a train passes so that the system's computer is aware of which blocks are occupied. If a train attempts to enter an occupied block, the stopping mechanisms in all blocks are engaged.{{citation needed|date=August 2023}}