balise accuracy attribute
Martin Lehmann suggested to rename the balise attribute linkingAccuracy to locationAccuracy.
see http://www.railml.org/forum/ro/index.php?group=1&id=56
That would really be a better term, see also "ETCS System Requirements Specification Chapter 7 (ERTMS/ETCS language)" (SUBSET-026-7 Issue 2.3.0):
"Q_LOCACC: Accuracy of the balise location"
Its value runs from "0" to "63m". Negative values were removed.