Anläggningsarbete

Kommittébeteckning: SIS/TK 254 (Järnväg, tunnelbana och spårväg)
Källa: CEN
Svarsdatum: den 23 feb 2023
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This document addresses the measurement of source terms for environmental noise calculation for rail traffic (including light rail, such as trams, metros, etc). It is applicable to the measurement of in-service trains on operational tracks.
It is not applicable to type acceptance testing of rolling-stock or tracks, or to derive source terms for time domain models.
The following rail traffic noise source types are in the scope:
• Rolling noise ;
• Traction noise ;
• Aerodynamic noise ;
• Impact noise (e.g. rail joints, switch and crossings, wheel flats) ;
• Braking noise ;
• Bridge noise ;
• Squeal noise.
Noise from rail vehicles at standstill, such as stationary engine idling and auxiliary equipment at yards and stations is covered by EN ISO 3095:2013 for measurement procedures and operating conditions, and by ISO 3740:2019, and ISO 3744:2010 for the determination of sound power.
The calculation of the propagation of sound is part of generally standardized propagation models which are not addressed in this document.
Noise from fixed installations (e.g.: stations, depots, electricity sub-stations) are not in the scope of this document.
Source terms are specific to a vehicle and track type. The scope includes measurement procedures and conditions and sampling requirements.

Kommittébeteckning: SIS/TK 135 (Rostfria stål)
Källa: ISO
Svarsdatum: den 2 mar 2023
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This document specifies requirements for wire rod for bridge cable wire, which are widely used in parallel wire cables or semi-parallel wire cables for suspension bridges, stay bridges or other structures involving the use of parallel wires.
The ISO 16120-4 provides additional wire rod materials and their technical and qualitative requirements for their possible application as bridge cable wire.

Ämnesområden: Körbana
Kommittébeteckning: SIS/TK 185 (Cement och byggkalk)
Källa: CEN
Svarsdatum: den 14 mar 2023
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This document specifies the scheme for the assessment and verification of constancy of performance (AVCP) of hydraulic road binders, including certification of conformity of the factory production control.
This document provides technical rules for factory production control, further testing of samples taken at the manufacturing plant (autocontrol testing), assessment of the performance of the hydraulic road binder, initial inspection of the manufacturing plant and of factory production control and continuing surveillance, assessment and evaluation of factory production control.
This document is intended to be linked with the Annexes ZA of the European Standards covering hydraulic road binders, i.e. EN 13282-1 and EN 13282-2.
NOTE The reason for having drafted this separate document is that the provisions it includes are applicable to different products covered by different European Standards.