Many conditions may lead to temporary parking. For example, if a locomotive breaks down and needs temporary treatment, the train will be automatically stopped by the safety system when it is speeding, the line ahead is dangerous, there is no standby platform to pick up the train at the railway station ahead, and the signal of the line ahead is abnormal, which will cause temporary parking.
Most of the reasons for technical parking are fixed time and place to avoid other trains giving way, which is called technical parking for short. In the operation diagram, technical parking is needed in many cases, such as changing the running captain when the ordinary bus passes the bureau, and technical parking is also needed.
Extended data
Automatic Train Stop Device (ZTL) is installed on the basis of locomotive signals in China Railway. Automatic train stop device was popularized in China railway in 1980s, and developed from ZTL- 1 to ZTL-3. The device is connected with the locomotive signal display. When the ground signal in front of the train shows a red light, the locomotive signal display prohibition signal constitutes an audio alarm.
The driver should press the alarm button to respond within the specified time. If the driver fails to press the alarm button and take effective braking measures, when the alarm time exceeds the specified time. The automatic stop device will open the exhaust valve in the train braking system and force the train to stop automatically.
The use of automatic stop device has effectively eliminated the signal accident caused by the driver's loss of vigilance. However, due to the existence of the warning button in the automatic parking device, if the driver habitually presses the warning button unconsciously, the automatic parking device will still fail. In addition, the train automatic stop device ZTI.
The function is simple, and there is no connection with the speed control in train operation. In order to effectively control the running speed of trains and reduce accidents caused by overspeed or emergency stop signals, it is necessary to develop the train overspeed protection system (ATP).