Stein M Knibestöl’s Post

📌 As railway signalling engineers, our primary objective is to ensure the safety of your train journey by maintaining a safe distance between trains. ✅ The specific methods we employ may vary depending on the type of signalling system in use, such as lineside signalling, in-cab signalling, moving block, or fixed block. ● Lineside signalling refers to the traditional method of using signals placed along the trackside to communicate information to train drivers. ●In-cab signalling involves transmitting signals/messages/movement authorities directly to the train's cab, enabling the driver to receive real-time information about the track ahead. ✅ Moving block and fixed block systems are two approaches to railway signalling: ● In moving block systems, trains are equipped with advanced communication and positioning technology, allowing for more precise control over train spacing. ● Fixed block systems rely on predetermined sections of track, known as blocks, where only one train is allowed at a time. © Unknown -- ➡️ I created #AmineA to track my previous posts ➡️ If you want to be notified when I post, visit my profile and then tap the subscription bell 🔔 ➡️ Learn more about railways via All Things Railways 🚂📩 Newsletter (link: https://bit.ly/3BtguZD) #technology #engineering #transport #rail #railway #future #creativity #construction #futurism

Railway Semaphore Signalling

That's how it works

Lineside signaling involves using physical signals, like trackside lights, to control train movements. In-cab signaling uses technology inside the train's cab to display signals to the driver. Moving block and fixed block refer to signaling systems. Moving block dynamically adjusts the safe separation between trains, while fixed block maintains a fixed distance between them, ensuring only one train occupies a block at a time. #railway #signalling #railsafety #railwaysystems #transport #engineering #mobility

Mechanical interlocking in railway signalling systems depend on lever frames as a fundamental component of their operation. These lever frames serve in interlocking various elements of the signaling infrastructure, including signals, track locks, and points. Their primary purpose is to ensure the safe and coordinated movement of trains within the area under the signals' jurisdiction. Typically situated within the signal box, these levers can be operated by either the signalman or the pointsman, depending on the specific configuration and needs of the railway network. Video credit: Unknown -- ➡️ I created #AmineA to track my previous posts ➡️ If you want to be notified when I post, visit my profile and then tap the subscription bell 🔔 ➡️ Learn more about railways via All Things Railways 🚂📩 Newsletter (link: https://bit.ly/3BtguZD) #technology #engineering #transport #rail #railway #future #creativity #construction #futurism #innovation

📌 In railway signalling, the term "Signal Passed At Danger" (SPAD) refers to a situation where a train proceeds through a signal displaying an indication to stop, typically depicted by a red aspect, as exemplified in the video. ℹ️ This occurrence of a signal displaying a "do not proceed" indication can be attributed to two primary reasons: 1. Safety Considerations: the train is prevented from proceeding due to hazardous conditions. For instance: ● The points (switches) responsible for guiding the train onto the correct track are not in the right position. ● The subsequent section of track is currently (or going to be) occupied by another train, posing a potential collision risk. ● Special circumstances, such as an electric train entering a section of track without electrification, necessitate an immediate halt. 2. Operational Factors: ● Even if all safety conditions are met, a train might still refrain from proceeding. This is often tied to the train's schedule, which is established according to a predefined timetable. ● Departures are synchronised with this schedule, either by manual intervention from a Traffic Controller or through automated systems such as the Traffic Management System (TMS)/Automatic Route Setting (ARS). 💡 It's crucial to comprehend that a SPAD scenario signifies a violation of safety and underscores the gravity of ensuring proper signal adherence and track conditions. The reasons behind such occurrences can range from technical glitches to human error, and efforts to prevent and mitigate SPAD incidents are an integral part of railway signalling. -- ➡️ I created #AmineA to track my previous posts ➡️ If you want to be notified when I post, visit my profile and then tap the subscription bell 🔔 ➡️ Learn more about railways via All Things Railways 🚂📩 Newsletter (link: https://bit.ly/3BtguZD) #technology #engineering #transport #rail #railway #future #creativity #construction #futurism

Safety in railway is a serious matter and signalling plays a key role.

ST Engineering moves to 5G Smart Rail Operations, paving the way for Future Rail Innovations ST Engineering announced that its Urban Solutions business continues to make headway in its Smart Mobility capabilities with the integration of 5G technology in its Smart Metro solutions, paving the way for the adoption of Future Railway Mobile Communication System (FRMCS) and digital rail innovations that will transform the future of rail and passenger experience. ST Engineering Urban Solutions’ AGIL® Smart Metro Control Centre and AGIL® Passenger Information System solutions will leverage the advantages of 5G including high speed, massive capacity and low latency, to enhance rail communications connectivity, operational efficiency and safety. Streamlining multiple communication infrastructures, the move to a single 5G wireless network will allow rail operators remote digital access to all rail resources, facilitating quick, seamless and reliable communication between trains and ground control, as well as cost savings. Through real-time data transmission, rail operators will be able to efficiently monitor, manage and maintain train systems, enable accurate location tracking as well as swift incident response. In addition, rail passengers will have much quicker access to real-time travel information on the go, and the ability to utilise multi-media rich applications such as reliable live video streaming for an enhanced travel experience. #STEngineering #SmartCity #SmartMobility #5G #RailInnovations https://lnkd.in/gabur38K

This is how advanced railway signalling and train control systems safely increase the rail network capacity. Capacity is a key consideration in railway signalling, and there are two main approaches used: fixed block and moving block signalling. Fixed block signalling divides the track into sections, and trains are not allowed to enter a section until it is clear. Moving block signalling, on the other hand, uses communications between the train and the signalling system to calculate a safe distance to the next train, allowing for more efficient use of track capacity. Video credit: Rail Projects Victoria

This is the clearest explanation of fixed block vs moving block I’ve ever seen. It takes many words to explain this concept, but this short animation makes it extremely clear.