# Commission Decision of 30 May 2002 concerning the technical specification for interoperability relating to the rolling stock subsystem of the trans-European high-speed rail system referred to in Article 6(1) of Directive 96/48/EC (notified under document number C(2002) 1952) (Text with EEA relevance) (2002/735/EC), Division 4.2.13: Slipstream effects

Extent: E+W+S+N.I.

The behaviour of a train with respect to slipstream effects on persons outside the train is characterised by the trackside forces created on passage of the trainset.
The sensor used is a dummy with the following characteristics:
A cylinder constituting a test body subjected to the slipstream effect with the following geometrical characteristics:
cylinder frontal area: 0,36m2 ± 0,05m2,
cylinder height: 0,92 m ± 0,10 m,
height of the pressure centre (cylinder centre) in relation to the base of the bearing device: 1,10 m ± 0,15 m,
a device maintaining the cylinder in its measuring position at garage distance dG,
a measurement system.
Definitions:
Ve test speed in km/h.
Vmax the anticipated operating maximum speed in km/h.
TTmax maximal effort module for the whole trainset.
IT trail index in N.
dG garage distance, or distance separating the outside model face (the closest to the rail) of the outside rail face.
It can be defined: NM = TT max Ve 2
Then comes:
The reference values of the drag effect IT are defined as follows:
The interoperable trainsets have to respect:
at the speed of 300 km/h,
or in the maximal speed of the trainset if it is lower than 300 km/h,
IT value:
IT < or = 185 Nat a distance d g of 2 m

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Source: https://www.legislation.gov.uk/eudn/2002/735/annex/division/4/division/4.2/division/4.2.13 (the official version)
Page: https://openlegislation.uk/eu-decision-2002-735/annex/division-4/division-4.2/division-4.2.13
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.