characteristics of wheel rail interface
Thoroughly understand the forces of physics involved in the interaction between the wheels and the rail, possible rail defects, maintenance practices, and cost implications.
Rail maintenance technicians execute routine inspections of railway tracks, powerlines, signage stations, switches, and other railway infrastructure. They are also sent out to repair defects quickly, safely, and at any time of the day or night.
No competences in this bucket.
Thoroughly understand the forces of physics involved in the interaction between the wheels and the rail, possible rail defects, maintenance practices, and cost implications.
The principles of electricity and electrical power circuits, as well as the associated risks.
Theoretical and practical applications of the science studying the action of displacements and forces on physical bodies to the development of machinery and mechanical devices.
The mechanical aspects and principles of the mechanics involved in trains.
Sensors are transducers that can detect or sense characteristics in their environment. They detect changes in the apparatus or environment and provide a corresponding optical or electrical signal. Sensors are commonly divided in six classes: mechanical, electronic, thermal, magnetic, electrochemical, and optical sensors.
Read, analyse and interpret the graphical recordings issued by the rail-flaw-detection machine in order to detect errors or flaws in rails.
Monitor a variety of sensors, such as heat sensors and wheel impact load sensors, that detect flaws in railway and train operations. Check the output from the sensors from a distance or visit the location.
Formulate advice on maintenance, repair or upgrades of the inspected railroad infrastructure.
Design procedures to implement wayside signalling interlockings. Analyse routes and aspect charts and take into account highway crossing warning systems.
Identify and analyse damage or malfunctions in the mechanical, pneumatic, or hydraulic equipment of rail track; determine necessary maintenance and repair work.
Monitor the output from various sensors that detect flaws in a railroad track, including laser sensors which scan for discontinuities, microphone sensors, gyroscopes which detect tilt, and others.
Visually check the integrity of train tracks, sleepers, and ballast. This is usually done in reaction to reports from workers or detections by sensors.
Compose documents and reports on the nature of rail defects investigated, position of defect in rail, location, etc.
Apply the relevant health and safety procedures in construction in order to prevent accidents, pollution and other risks.
Check construction supplies for damage, moisture, loss or other problems before using the material.
Diagnose and detect malfunctions in sensor components, systems, and products using sensors and remove, replace, or repair these components when necessary. Execute preventative equipment maintenance tasks, such as storing the components in clean, dust-free, and non-humid spaces.
Record data which has been identified specifically during preceding tests in order to verify that outputs of the test produce specific results or to review the reaction of the subject under exceptional or unusual input.
Test sensors using appropriate equipment. Gather and analyse data. Monitor and evaluate system performance and take action if needed.
Use elements of protective clothing such as steel-tipped shoes, and gear such as protective goggles, in order to minimise risk of accidents in construction and to mitigate any injury if an accident does occur.
Hot wheel detection systems, which record the temperature of passing rail vehicle wheels and pass an alarm if a critical temperature is reached.
The hunting truck detector, which detects hunting of rail vehicle trucks, i.e. side-to-side movements which cause harmful impacts of the side of the wheels on the tracks.
Weigh in motion systems, which measure the weight of a vehicle passing over and may send out an alarm if the vehicle is overloaded or unbalanced.
The wheel impact load detector or WILD, a detector that monitors the impact of railed vehicle wheels on the tracks.
Regulations on construction products quality standards applied throughout the European Union.
The functioning of electrical systems, their specifications, and application in operations and systems for the transportation of freight and people.
The study of electric energy, more specifically electron, control and its prominent principles regarding integrated circuits and electrical systems.
The modern signalling systems and the application of digital technologies to improve the functioning of signalling equipment.
The legislative framework governing the different aspects of railway transport, including licensing of railway undertakings, railway infrastructure capacity, railway safety and the legislation that applies to the field of cross-border freight transit.
The composition and functions of a work train, a train composed of automatic machines that remove, inspect, adjust and lay railway ballast, sleepers and rails.
No competences in this bucket.
Use a tribometer to check the amount of friction that a surface provides.
Ensure that freight cars are free of all safety defects that could lead to derailing or loss of freight while in transit. Ensure that freight cars meet transportation requirements.
Detect internal flaws in rails in order to prevent derailments.
Investigate the subsidence of a surface in relation to the railway system and recommend effective mitigation measures.
Receive incoming construction supplies, handle the transaction and enter the supplies into any internal administration system.
Perform tests of the rail-flaw-detection machine using circuit testers.
Work as part of a team in a construction project. Communicate efficiently, sharing information with team members and reporting to supervisors. Follow instructions and adapt to changes in a flexible manner.
File and organise personal administration documents comprehensively.
Maintain records of the progress of the work including time, defects, malfunctions, etc.
Liaise with managers of other departments ensuring effective service and communication, i.e. sales, planning, purchasing, trading, distribution and technical.
Communicate and cooperate with bridge, geotechnical, materials experts, architects, etc.
Keep written records of all repairs and maintenance interventions undertaken, including information on the parts and materials used, etc.
Apply ergonomy principles in the organisation of the workplace while manually handling equipment and materials.