Railway infrastructure maintenance and repair
In order to ensure the efficient functioning and safety of the public railway infrastructure for all traffic participants, as well as to enable carriers to provide socially necessary passenger services and uninterrupted rail freight transport, AB LTG Infra continuously invests in the reconstruction and development of the railway infrastructure, thus ensuring the proper maintenance of the infrastructure by providing maintenance services, including road upgrades, bridge repairs, level crossing repairs and upgrades, replacing worn out switches, and repairing and replacing water crossings.
The programme for the renewal of main railway lines
A railway track is an engineering structure consisting of an earth bed, a superstructure (ballast layer, sleepers, rails) and other engineering installations. The track gauges of the main lines in operation in the territory of the Republic of Lithuania are 1520 mm (2225.80 km) and 1435 mm (120.1 km).
Sections in poor condition are identified by worn fasteners, contaminated crushed stone ballast, damaged bed and high levels of track wear. Defective track elements reduce stability and, consequently, safety, leading to speed restrictions on the track sections and thus reducing railway throughput.
The objectives of the programme are to organise and implement a programme for the renewal of main railway line tracks through tenders for design services, technical supervision and contract works, and to carry out the renewal of the most defective railway tracks after the award of contracts. To reduce sections of tracks in poor technical condition, ensuring the efficient functioning of public infrastructure and enabling carriers to provide uninterrupted rail freight and passenger transport. The programme includes repairs to railway tracks in the worst condition. Repairs involve replacing the superstructure or its individual parts, removing minor defects in the superstructure and restoring the technical and geometric parameters of the load bearing structures.
Program for the renewal of arrival - departure routes and other roads of the station
A railway track is an engineering structure consisting of an earth bed, a superstructure (ballast layer, sleepers, rails) and other engineering installations. The total length of the stations' tracks is 1912.04 km.
Defective sleepers, contaminated ballast and worn metal parts have been identified on station tracks in poor condition. Defective track elements reduce stability and, consequently, safety, leading to speed restrictions on railways and thus to railway throughput.
The objectives of the programme are to organise and implement a programme for the renewal of arrival and departure tracks and other station tracks through the procurement of design services, technical supervision and contract works, and to carry out the renewal of the most defective station tracks after the award of contracts. To reduce the number of station railway tracks in poor technical conditions, ensuring the efficient functioning of public infrastructure and enabling carriers to provide uninterrupted rail freight and passenger transport. Railway tracks in the worst condition at stations are subject to repairs. Repairs involve replacing the superstructure or its individual parts, removing minor defects in the superstructure and restoring the technical and geometric parameters of the load bearing structures.
The bridge repair programme
Bridges are inspected annually to assess their technical condition and compliance with current safety and durability requirements. Such inspections allow bridges in need of repair or renewal to be identified in time to ensure the smooth operation of transport infrastructure. Some of the bridges selected are over 100 years old, so renewing them is an important investment step to ensure the long-term reliability of the network.
The objectives of the programme are to organise and implement a bridge repair programme through the procurement of design services, technical supervision and contract works, and to carry out the repair of bridges with the most severe defects once contracts have been awarded. To prevent traffic restrictions and accidents due to poor bridge condition and damage. To ensure that bridges are in the required technical condition in accordance with the requirements of the normative construction technical documents and safety requirements and have a maximum service life. To reduce the number of defective rail structures that adversely affect the Company's operations and safety. To ensure existing infrastructure capacity and the continuous, comfortable and safe flow of traffic at the set speed limit.
The level crossing repair programme
A level crossing is a safety-critical facility where a motor road and a railway intersect at the same level, so it is essential to ensure the safe passage of rolling stock and road traffic.
Each year, maintenance experts draw up a list of priority level crossings that must be repaired. The priority of repairs is based on analysis of factors such as corrosion of the rail base plate, rail track quality index, condition of the level crossing surface, condition of the level crossing approaches, intensity of motor road traffic, etc.
The objectives of the programme are to organise and implement a programme of level crossing repairs through the procurement of design services, technical supervision and contract works, and to carry out repairs of level crossings with the most severe defects once contracts have been awarded. The repair of level crossings is aimed at ensuring compliance with the requirements of the Road Technical Regulation and reducing the need for maintenance works, avoiding train speed restrictions and reducing the motor road traffic throughput.
Switch replacement programme
A switch is an installation that guides rolling stock from one track to another. It consists of frame rails, points, switching device, frogs, wing rails, guard rails and connecting tracks. According to the Maintenance Rules for Switches and Track Crossings (LTGI 113/K), if the defects in elements of the superstructure exceed the permissible limits, repairs must be carried out in order to ensure the proper functioning of the tracks.
The sets of switches to be repaired have deteriorated metal parts, defective switch sleepers and contaminated crushed stone, resulting in reduced train speeds to the point of total train traffic interruption, reduced train throughput and increased risk of derailment of trains.
The objectives of the programme are to organise and implement a switch replacement programme through the procurement of design services, technical supervision and contract works and, once contracts are awarded, the replacement of switches with the most severe defects. To maintain the maximum train speeds on railway sections, ensure train throughput and adherence to timetables, ensure the safe carriage of passengers and freight on the public railway infrastructure, and reduce infrastructure maintenance costs.
Culvert repair programme
A culvert is an engineering structure underneath a railway track for the flow of water.
In the infrastructure operated by LTG Infra, which has been intensively renewed recently, there are still some culverts that are considered to be in a very poor condition, have reached the end of their useful life, and were designed according to the requirements and axial loads in force at that time. Some culverts are no longer functioning, which is why there is a culvert repair programme.
The objectives of the programme are to organise and implement a culvert repair programme through the procurement of design services, technical supervision and contract works, and to carry out repairs to the most defective culverts once contracts have been awarded. To ensure good water drainage by protecting rail track structures, maintain maximum train speeds on railway sections, ensure train throughput and compliance with timetables, safe passenger and freight transport on public railway infrastructure, and reduce infrastructure maintenance costs.
