diff --git a/protos/stationLayoutGraphics.proto b/protos/stationLayoutGraphics.proto
index 0a68384..d269bd9 100644
--- a/protos/stationLayoutGraphics.proto
+++ b/protos/stationLayoutGraphics.proto
@@ -321,6 +321,8 @@ message TrackSection { //轨道区段
   string destinationCode = 6;            //目的地码
   repeated string trackLogicSection = 7; //下属的逻辑区段id(非岔区)
   //   //关联的物理设备id(物理区段/道岔)由另一端(物理区段/道岔处理)
+  bool isCurve = 8;        // 是否曲线
+  int32 segmentsCount = 9; // 曲线分段数
 }
 
 message TrackLogicSection { //轨道逻辑区段