From 6228bdb5aeed047f500c0c2621098ca331beb600 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Matthias=20G=C3=BCnter?= <matthias.guenter@sbb.ch>
Date: Mon, 27 Nov 2023 09:38:36 +0100
Subject: [PATCH] Update netex_ifopt_site_version.xsd (#559)

---
 xsd/netex_part_1/part1_ifopt/netex_ifopt_site_version.xsd | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xsd/netex_part_1/part1_ifopt/netex_ifopt_site_version.xsd b/xsd/netex_part_1/part1_ifopt/netex_ifopt_site_version.xsd
index 18b932bfa..e02409e03 100644
--- a/xsd/netex_part_1/part1_ifopt/netex_ifopt_site_version.xsd
+++ b/xsd/netex_part_1/part1_ifopt/netex_ifopt_site_version.xsd
@@ -600,7 +600,7 @@ Rail transport, Roads and Road transport
 					<xsd:documentation>Whether level is for public use.</xsd:documentation>
 				</xsd:annotation>
 			</xsd:element>
-			<xsd:element name="RelativeLevelOrder" type="xsd:integer">
+			<xsd:element name="RelativeLevelOrder" type="xsd:integer" minOccurs="0">
 				<xsd:annotation>
 					<xsd:documentation>Order of LEVELs. The level numbers are not absolute, but only give a relative order within the SITE. 0 should be the ground floor, even when it is often difficult to determine which one that is in a complex structure. Complex buildings can be modelled with multiple SITEs and referenced by SiteRef.</xsd:documentation>
 				</xsd:annotation>