diff --git a/backend/spec/state/v1/train.pb.go b/backend/spec/state/v1/train.pb.go
index 6205fe7b..0ef80d7e 100644
--- a/backend/spec/state/v1/train.pb.go
+++ b/backend/spec/state/v1/train.pb.go
@@ -79,8 +79,9 @@ type Train struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	TrainId   string `protobuf:"bytes,1,opt,name=train_id,json=trainId,proto3" json:"train_id,omitempty"`       // 列車ID(NFCのUUIDと一意に対応している)
-	StationId string `protobuf:"bytes,2,opt,name=station_id,json=stationId,proto3" json:"station_id,omitempty"` // 駅のID
+	TrainId    string   `protobuf:"bytes,1,opt,name=train_id,json=trainId,proto3" json:"train_id,omitempty"`            // 列車ID(NFCのUUIDと一意に対応している)
+	PositionId string   `protobuf:"bytes,2,opt,name=position_id,json=positionId,proto3" json:"position_id,omitempty"`   // 駅 or 閉塞のID
+	Priority   Priority `protobuf:"varint,3,opt,name=priority,proto3,enum=state.v1.Priority" json:"priority,omitempty"` // 列車の優先度
 }
 
 func (x *Train) Reset() {
@@ -122,13 +123,20 @@ func (x *Train) GetTrainId() string {
 	return ""
 }
 
-func (x *Train) GetStationId() string {
+func (x *Train) GetPositionId() string {
 	if x != nil {
-		return x.StationId
+		return x.PositionId
 	}
 	return ""
 }
 
+func (x *Train) GetPriority() Priority {
+	if x != nil {
+		return x.Priority
+	}
+	return Priority_PRIORITY_UNSPECIFIED
+}
+
 // GetTrains : 列車の状態を取得するAPI
 type GetTrainsRequest struct {
 	state         protoimpl.MessageState
@@ -316,37 +324,40 @@ var file_state_v1_train_proto_rawDesc = []byte{
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 }
 
 var (
@@ -372,12 +383,13 @@ var file_state_v1_train_proto_goTypes = []interface{}{
 	(*UpdateTrainUUIDResponse)(nil), // 5: state.v1.UpdateTrainUUIDResponse
 }
 var file_state_v1_train_proto_depIdxs = []int32{
-	1, // 0: state.v1.GetTrainsResponse.trains:type_name -> state.v1.Train
-	1, // [1:1] is the sub-list for method output_type
-	1, // [1:1] is the sub-list for method input_type
-	1, // [1:1] is the sub-list for extension type_name
-	1, // [1:1] is the sub-list for extension extendee
-	0, // [0:1] is the sub-list for field type_name
+	0, // 0: state.v1.Train.priority:type_name -> state.v1.Priority
+	1, // 1: state.v1.GetTrainsResponse.trains:type_name -> state.v1.Train
+	2, // [2:2] is the sub-list for method output_type
+	2, // [2:2] is the sub-list for method input_type
+	2, // [2:2] is the sub-list for extension type_name
+	2, // [2:2] is the sub-list for extension extendee
+	0, // [0:2] is the sub-list for field type_name
 }
 
 func init() { file_state_v1_train_proto_init() }
diff --git a/frontend/dashboard/proto/state/v1/train_pb.d.ts b/frontend/dashboard/proto/state/v1/train_pb.d.ts
index 19040853..67cf89ea 100644
--- a/frontend/dashboard/proto/state/v1/train_pb.d.ts
+++ b/frontend/dashboard/proto/state/v1/train_pb.d.ts
@@ -42,11 +42,18 @@ export declare class Train extends Message<Train> {
   trainId: string;
 
   /**
-   * 駅のID
+   * 駅 or 閉塞のID
    *
-   * @generated from field: string station_id = 2;
+   * @generated from field: string position_id = 2;
    */
-  stationId: string;
+  positionId: string;
+
+  /**
+   * 列車の優先度
+   *
+   * @generated from field: state.v1.Priority priority = 3;
+   */
+  priority: Priority;
 
   constructor(data?: PartialMessage<Train>);
 
diff --git a/frontend/dashboard/proto/state/v1/train_pb.js b/frontend/dashboard/proto/state/v1/train_pb.js
index d284bf40..76a6be31 100644
--- a/frontend/dashboard/proto/state/v1/train_pb.js
+++ b/frontend/dashboard/proto/state/v1/train_pb.js
@@ -28,7 +28,8 @@ export const Train = proto3.makeMessageType(
   "state.v1.Train",
   () => [
     { no: 1, name: "train_id", kind: "scalar", T: 9 /* ScalarType.STRING */ },
-    { no: 2, name: "station_id", kind: "scalar", T: 9 /* ScalarType.STRING */ },
+    { no: 2, name: "position_id", kind: "scalar", T: 9 /* ScalarType.STRING */ },
+    { no: 3, name: "priority", kind: "enum", T: proto3.getEnumType(Priority) },
   ],
 );