diff --git a/src/main/java/club/joylink/rtss/simulation/cbtc/data/map/Section.java b/src/main/java/club/joylink/rtss/simulation/cbtc/data/map/Section.java
index 09236bb18..e074cd8c2 100644
--- a/src/main/java/club/joylink/rtss/simulation/cbtc/data/map/Section.java
+++ b/src/main/java/club/joylink/rtss/simulation/cbtc/data/map/Section.java
@@ -491,18 +491,16 @@ public class Section extends MayOutOfOrderDevice {
      * @return
      */
     public boolean isNonCbtcOccupy() {
-        synchronized (this){
-            boolean ctOcc = this.ctOccupied;
-            if (!CollectionUtils.isEmpty(this.logicList)) {
-                for (Section logic : this.logicList) {
-                    if (logic.isCtOccupied()) {
-                        ctOcc = true;
-                        break;
-                    }
+        boolean nct = this.nctOccupied && !this.ctOccupied;
+        if (!CollectionUtils.isEmpty(this.logicList)) {
+            for (Section logic : this.logicList) {
+                if (logic.isCtOccupied() || !logic.isNctOccupied()) {
+                    nct = false;
+                    break;
                 }
             }
-            return !ctOcc && this.nctOccupied;
         }
+        return nct;
     }
 
     public List<Section> getAtpSectionListBy(float offset1, float offset2) {