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driftsvärde/in service value/wert im betriebszustand/valeur en exploitation
the distance between points of the centre lines of the two tracks under consideration, measured parallel to the running surface of the reference track namely the less canted track.
de tekniska egenskaperna för spårväxlar ska följa ett driftsvärde för flänsrännans minsta djup på 38 mm.
(2)(f) the technical characteristics of switches and crossings shall comply with an in-service value for minimum flangeway depth of 38 mm.