diff --git a/src/main/java/club/joylink/rtss/simulation/cbtc/ATP/ground/MaService.java b/src/main/java/club/joylink/rtss/simulation/cbtc/ATP/ground/MaService.java
index 5b0b2855b..a88d51a1d 100644
--- a/src/main/java/club/joylink/rtss/simulation/cbtc/ATP/ground/MaService.java
+++ b/src/main/java/club/joylink/rtss/simulation/cbtc/ATP/ground/MaService.java
@@ -416,6 +416,22 @@ public class MaService {
                     // 道岔故障进路，直接构建返回
                     ma = this.checkAndUpdateMa(ma, new Ma(train, section, MaType.Fault_Route));
                 }
+                // 反向锁闭区段
+                if (right != route.getStart().isRight()) { // 列车方向和区段进路方向相反
+                    Signal aheadSignal = section.getSignalOf(right);
+                    if (aheadSignal == null || aheadSignal.getLockedRoute() == null ||
+                            !aheadSignal.getLockedRoute().isOpen()) {
+                        ma = this.checkAndUpdateMa(ma, new Ma(train, section, MaType.Closed_Section));
+                    }
+                }
+            } else if(front) {
+                if (!section.isRouteLock() && !section.isOverlapLock()) {//列车前方区段未锁闭
+                    Signal aheadSignal = section.getSignalOf(right);
+                    if (aheadSignal == null || aheadSignal.getLockedRoute() == null ||
+                            !aheadSignal.getLockedRoute().isOpen()) {
+                        ma = this.checkAndUpdateMa(ma, new Ma(train, section, MaType.Closed_Section));
+                    }
+                }
             }
             if (section.isClosed()) {
                 // 关闭的区段
diff --git a/src/main/java/club/joylink/rtss/simulation/cbtc/onboard/ATP/ATPService.java b/src/main/java/club/joylink/rtss/simulation/cbtc/onboard/ATP/ATPService.java
index 56a116f7b..95adfdafc 100644
--- a/src/main/java/club/joylink/rtss/simulation/cbtc/onboard/ATP/ATPService.java
+++ b/src/main/java/club/joylink/rtss/simulation/cbtc/onboard/ATP/ATPService.java
@@ -273,6 +273,8 @@ public class ATPService {
         // 车尾变车头，车头变车尾
         train.setHeadPosition(newHeadPosition);
         train.setRight(!right);
+        // 清除旧的移动授权
+        train.setMa2(null);
     }
 
     public void changeEndsProgress(VirtualRealityTrain train) {