diff --git a/protos/stationLayoutGraphics.proto b/protos/stationLayoutGraphics.proto
index 1273f2b..769208f 100644
--- a/protos/stationLayoutGraphics.proto
+++ b/protos/stationLayoutGraphics.proto
@@ -20,6 +20,7 @@ message RtssGraphicStorage {
   repeated AxleCounting axleCountings = 13;
   repeated Separator separators = 14;
   repeated SectionLink sectionLinks = 15;
+  repeated AxleCountingSection axleCountingSections = 16;
 }
 
 message Canvas {
@@ -216,3 +217,11 @@ message SectionLink {
   repeated Point points = 3;
   string refDevice = 4;
 }
+
+message AxleCountingSection { // 计轴区段
+  CommonInfo common = 1;
+  string code = 2;
+  repeated Point points = 3;
+  RelatedRef paRef = 4;  // 区段A端关联的设备
+  RelatedRef pbRef = 5;  // 区段B端关联的设备
+}