A prototype model of unmanned automatic level crossing system using piezoelectric sensor

2020 ◽  
Vol 79 ◽  
pp. 103265 ◽  
Author(s):  
Y. Arockia Jesuraj ◽  
K. Hemalatha
Keyword(s):  
Piezoelectric Sensor ◽  
Prototype Model ◽  
Level Crossing ◽  
Automatic Level

Time of crossing closure at different methods of formation of notification sections

2020 ◽  
pp. 29-33
Author(s):  
Anton Nikolaevich Popov ◽  
◽  
Sergey Yuryevich Grishaev ◽  
Keyword(s):  
Road Transport ◽  
Level Crossing ◽  
Fixed Length ◽  
Train Speed ◽  
Automatic Level

The paper presents the results of creation and investigation of dependencies of notification sections and notification times from train speed at different methods of automatic level crossing safety installation control. The authors consider automatic level crossing safety installation systems with notification sections of fixed length and with the control based on approaching train characteristics. As a result, method of automatic level crossing safety installation control based on train characteristics simultaneously increases safety and decreases time of crossing closure for road transport.

scholarly journals Rail Transport Infrastructure on the Example of Level Crossing System

2018 ◽  
Vol 7 (4.3) ◽  
pp. 228 ◽  
Author(s):  
Perzyński Tomasz ◽  
Wojciechowski Jerzy ◽  
Łukasik Zbigniew
Keyword(s):  
Markov Processes ◽  
Statistical Data ◽  
Rail Transport ◽  
Transport Infrastructure ◽  
Motor Vehicles ◽  
Level Crossing ◽  
Automation Systems ◽  
Automatic Level

The paper presents an analysis of the system of automatic level crossing. The proposed system belongs to a group of linear devices that ensure safe movement of motor vehicles at intersections of railway and car roads. In the paper, the computational tasks were carried out. On the basis of statistical data, the THR rate, which is characteristic for rail transport, was estimated. An example of modeling railway automation systems based on Markov processes is also presented. 

Safety of operation when motor vehicles stop at railway crossings in front of approaching train

2020 ◽  
pp. 39-42
Author(s):  
Anton Nikolaevich Popov ◽  
◽  
Sergey Yuryevich Grishaev ◽  
Keyword(s):  
Motor Vehicle ◽  
Motor Vehicles ◽  
Level Crossing ◽  
Full Stop ◽  
Automatic Level

The paper shows investigations of relationship between the length of approach sections of level crossing safety installation and braking distances of trains. It is established that the existing methods of calculating approach sections of automatic level crossing safety installation don’t guarantee, if necessary, a full stop of a train by braking before a crossing after it’s closure. The authors have formulated a condition when a train can be stopped before a closed crossing occupied by a motor vehicle. They have also carried out a verification of the existing automatic level crossing safety installation systems and established that such systems don’t comply the formulated condition, so the full stop of a train is not guaranteed. So, the authors have proposed measures on developing an algorithm of automatic level crossing safety installation operation for the control of automatic stop of a train before a crossing occupied by a motor vehicle. It is shown that the development of engineering is on a level sufficient for realization of this suggestions.

scholarly journals Application of Automatic Level Crossing Technology in Indonesia

2018 ◽  
Vol 2 (2) ◽  
pp. 133-140
Author(s):  
Nanda Ahda Imron ◽  
Natriya Faisal Rachman ◽  
Willy Artha Wirawan ◽  
Adya Aghastya
Keyword(s):  
Human Error ◽  
Waiting Times ◽  
Poor Performance ◽  
Obstacle Detection ◽  
The Other ◽  
Level Crossing ◽  
Traffic Calming ◽  
Road Users ◽  
The United Kingdom ◽  
Automatic Level

Indonesia has many Level Crossing (LC) all of which are still manual with poor performance. As a result, accidents often occur. This accident was caused by the guards who late lowered the doorstop, carelessness and impatience of road users. Erratic waiting times on LC cause delays and high queues and trigger road users to break through LC doors. In Jakarta, the LC manual causes significant disruption to road users; the delay is 158.46 seconds and the queue is 66.85 m as is the case in Malang, Pasuruan and Surakarta. Many countries have implemented Automatic Level Crossing (ALC) successfully, such as the United Kingdom, Japan and Australia. ALC not only reduces disruption to road users but also minimizes human error (especially for LC manual guards). The most suitable type of ALC for Indonesia is Crossing Barrier with Obstacle Detection (CBOD). This study proves that CBOD is able to reduce disruption to road users to delay to 125,393 seconds and queue to 60,778 m. On the other hand, to control the behavior of road users needs to be supported by the installation of traffic calming; noise band, traffic channel and countdown timer. Analysis of B / C Ratio in CBOD installations including traffic calming produces tilapia 1.24, which is feasible to apply.

scholarly journals Sigurnosna analiza sučelja između relejnog uređaja automatskog pružnog bloka i elektroničkog uređaja automatskog željezničko-cestovnog prijelaza

Sigurnost ◽  
2019 ◽  
Vol 61 (1) ◽  
pp. 27-37
Author(s):  
Dalibor Matanić ◽  
Hrvoje Haramina ◽  
Vedran Sesar
Keyword(s):  
Traffic Safety ◽  
Safety Analysis ◽  
Railway Transport ◽  
Joint Work ◽  
Level Crossing ◽  
Safety Devices ◽  
Block System ◽  
Potential Failure ◽  
Automatic Level

In the paper safety analysis of interface between electronic type of automatic level crossing device (LC) and relay based device of automatic block system (AB) is conducted for the purpose of indentifying the influence of their joint work on traffic safety. The analysis encompasses all potential failure cases in communication between observed signal-safety devices of AB and LC. Based on the results of the analysis it has been proved that the observed interface meets the safety criteria for application in railway transport, because if any failure occurs the respective signal-safety devices will always shift to a higher level of traffic safety, which is why it is not compromised.

scholarly journals Level Crossing Barrier Machine Faults and Anomaly Detection with the Use of Motor Current Waveform Analysis

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3206
Author(s):  
Damian Grzechca ◽  
Paweł Rybka ◽  
Roman Pawełczyk
Keyword(s):  
Anomaly Detection ◽  
Human Life ◽  
Safety Information ◽  
Waveform Analysis ◽  
Detection Accuracy ◽  
Current Waveform ◽  
Railway Transportation ◽  
Level Crossing ◽  
Railroad Crossings ◽  
Automatic Level

Barrier machines are a key component of automatic level crossing systems ensuring safety on railroad crossings. Their failure results not only in delayed railway transportation, but also puts human life at risk. To prevent faults in this critical safety element of automatic level crossing systems, it is recommended that fault and anomaly detection algorithms be implemented. Both algorithms are important in terms of safety (information on whether a barrier boom has been lifted/lowered as required) and predictive maintenance (information about the condition of the mechanical components). Here, the authors propose fault models for barrier machine fault and anomaly detection procedures based on current waveform observation. Several algorithms were applied and then assessed such as self-organising maps (SOM), autoencoder artificial neural network, local outlier factor (LOF) and isolation forest. The advantage of the proposed solution is there is no change of hardware, which is already homologated, and the use of the existing sensors (in a current measurement module). The methods under evaluation demonstrated acceptable rates of detection accuracy of the simulated faults, thereby enabling a practical application at the test stage.

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