"Parameter used by the ETCS on-board to supervise the distance allowed to be travelled under the roll-away protection and the reverse movement protection, in metres.\nAccording to the specification referenced in Appendix A-1, index [C].\nIn https://www.era.europa.eu/sites/default/files/filesystem/ertms/ccs_tsi_annex_a_-_mandatory_specifications/set_of_specifications_3_etcs_b3_r2_gsm-r_b1/index004_-_subset-026_v360.zip\n Subset 26, chapter 7. 7.5.1.17 D_NVROLL."@en . _:vb10361 . _:vb10559 . "2022-11-07"^^ . . . _:vb10538 . _:vb10538 _:vb10559 . _:vb10538 . "1.2.1.1.1.16.1\u00A0" . "1.5.1" . "1.1.1.3.2.16.1" . "stable" . _:vb10559 _:vb10361 . "2023-03-14"^^ . "D_NVROLL"@en . . _:vb10361 .