enkelspårlinjer

Enkelspårlinjer, also known as single-track lines, are railway lines where trains operate on a single track. This is in contrast to double-track lines, which have two parallel tracks allowing for simultaneous traffic in both directions. Single-track lines are common in areas with lower traffic density or where building a second track is economically or geographically unfeasible.

The operation of trains on single-track lines requires careful scheduling and signaling systems to prevent collisions. Historically, this was managed through written train orders and manual block systems. Modern single-track lines often utilize Centralized Traffic Control (CTC) or Automatic Train Protection (ATP) systems to ensure safe and efficient operation. These systems monitor train positions and speeds, and can automatically stop a train if a dangerous situation is detected.

Passing loops, also called sidings or passing places, are essential features of single-track lines. These are short sections of double track where trains can wait for other trains to pass. The length and number of passing loops are determined by the traffic volume and the length of the trains operating on the line.

While single-track lines can be more cost-effective to build and maintain, they inherently have lower capacity than double-track lines. This can lead to delays, especially during peak hours or when disruptions occur. However, with modern signaling technology, single-track lines can still handle significant amounts of traffic efficiently. They are a practical solution for many railway networks around the world.