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3.3.2 Capabilities3.3.2.1 Loading GaugeThe loading gauge (KU), Appendix 4, and the structure gauge (ATU), Appendix 5, are used throughout the stateowned rail network. On private industrial sidings, there may be both loading and structure gauge limitations, which railway undertakings shall clarify separately for carrying out transportation.The vehicle gauge (LKU) is specified in the Finnish Transport Safety Agency’s LIMO publication, point 1 ”Yleiset määräykset” (General rules). 3.3.2.2 Weight LimitsAxle loads22.5 ton axle loads are permitted on most of the rail network. The maximum permitted axle loads per line section are indicated in Appendix 6 (Superstructure Categories, EN Categories and Permitted Speeds for Different Axle Loads). Metre LoadsThe permitted metre load of rolling stock throughout the state-owned rail network is 8.0 tons/m.3.3.2.3 Line GradientsThe maximum gradient is 20 mm/m on the main lines and 22.5 mm on the secondary lines. The characteristic gradients of the line sections are indicated in Appendix 1 (Infrastructure Register). 3.3.2.4 Line SpeedsThe maximum speed is 220 km/h for passenger trains and 120 km/h for freight trains. The speeds permitted for passenger and freight trains on the rail network are indicated in Appendix 6 (Superstructure Categories, EN Categories and Permitted Speeds for Different Axle Loads)3.3.2.5 Maximum Train LengthsThe maximum train length permitted on a line section shall be such that trains can also use secondary tracks at the traffic operating points. Trains need not, however, be capable of using all secondary tracks at all traffic operating points. The train lengths used for dimensioning line sections are 550, 625, 725, 825 and 925 metres. The longest secondary tracks at each traffic operating points are indicated in Appendix 2 (Rail Traffic Operating Point Register). 3.3.2.6 Power SupplyThe nominal voltage of the electrification is 25 kV/50 HzAC. On all electrified lines, power is taken from the contact line above the track. One or both of the running rails and return conductors form a return circuit. The neutral sectionswill be located at the overhead line near substations. Rollingstock cannot collect current from these neutral sections. Themain switch of locomotive/electric train must be openedat the neutral sections. The train is not allowed to stop at a neutral section.
3.3.3 Traffic Control and Communications Systems3.3.3.1 Signalling SystemsThe signalling systems in use are indicated in Appendix 1 (Infrastructure Register) and graphically in Appendix 7 (Signalling Systems).A line with section block is a line divided into block sections. Only one train may be in a block section at a time. Issues related to section blocks are presented in RATO publication, part 6 “Turvalaitteet” (Signalling systems). Hot box detectors have been placed on the rail network at 50 km intervals on line sections on which the greatest speed is or can be over 160 km/h. In addition hot box detectors have been placed near the busiest junction stations. A map of the location of the hot box detectors is presented in Appendix 7. 3.3.3.2 Traffic Control SystemsThe line sections equipped with an automated traffic control system are indicated in Appendix 1 (Infrastructure Register) and in Appendix 7 (Signalling Systems). The following automated traffic control systems are used: centralised traffic control and radio control. On the CTC- and radio-controlled lines, all routes are equipped with the remote control of points and routes. On the secondary, loading and storage sidings of these line sections, however, local route setting may also be necessary. On radio-controlled lines, routes shall be set locally if it is necessary to operate on secondary, loading or storage sidings.3.3.3.3 Communications SystemsThe Finnish Transport Safety Agency sets regulations on, for example, traffic operation, railway work and communications. The valid regulations can be obtained at the Finnish Transport Safety Agency website. 3.3.3.4 Other SystemsMany of the larger stations have camera surveillance. The system allows traffic controllers to monitor the movement of trains and the Information Centre to observe the movement of passengers on platforms as well as the technical functioning of the information equipment. The Safety Centre is able to monitor passenger safety and control vandalism. Property maintenance, for its part, can use the system to check on the tidiness of platform areas and spot any need for maintenance work.3.3.3.5 ATP SystemsAutomatic train protection (ATP) is a system that controls the speed of a train.ATP engine equipment must be used in train traffic or, if operating without ATP engine equipment, an exceptional permit as referred to in section 28(5) of the Railway Act (555/2006) is compulsory. The Finnish Transport Safety Agency may grant an exceptional permit provided that it does not endanger the safety of the railway system. In cases concerning the use of ATP engine equipment, a fixed-term exceptional permit may be granted if the case involves a need for exceptional and temporary train operation or if ATP engine equipment or spare parts are not available. An exceptional permit may not be granted for a train unit or engine which is used in passenger or commercial freight traffic, when it is not directly connected with track maintenance. ATP engine equipment is not required in stock that is used for shunting only. Further information can be obtained from the Finnish Transport Safety Agency. Back to table of contents 3.4 Traffic Restrictions3.4.1 Specialised InfrastructureFinnish Transport Agency may designate a train path or a part of it as specialised infrastructure, if there are sufficiently alternative routes for other traffic. Specialised infrastructure refers to a train path or a part of it on which priority is given to the type of traffic for which the infrastructure is specialised. So far Finnish Transport Agency has not designated any line section in Finland as specialised infrastructure.The requirements laid down in the Finnish Transport Safety Agency’s LIMO publication are applied when registering rolling stock. LIMO sets out general and special requirements for rolling stock concerning noise, vibration, electromagnetic interferences, emissions, environmentally dangerous substances and the use of recycled construction materials. |
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