diff --git a/protos/stationLayoutGraphics.proto b/protos/stationLayoutGraphics.proto
index 5509476..06ba229 100644
--- a/protos/stationLayoutGraphics.proto
+++ b/protos/stationLayoutGraphics.proto
@@ -533,3 +533,19 @@ message SectionCodePoint {
   string centralizedStation = 1;
   repeated string sectionIds = 2; //物理区段id列表
 }
+
+// 列车信息
+message Train {
+  enum TrainModel { // 车型
+    A = 0;
+    B = 1;
+    C = 2;
+    D = 3;
+  }
+  TrainModel trainModel = 1; // 车型
+  int32 carriageLength = 2; // 列车车厢长度
+  int32 totalLength = 3; // 总长度
+  int32 minDiameter = 4; // 车轮的最小直径
+  int32 maxDiameter = 5; // 车轮的最大直径
+  string trainSets = 6; // 编组
+}
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