diff --git a/src/main/java/club/joylink/rtss/simulation/cbtc/ATS/service/TrainPositionService.java b/src/main/java/club/joylink/rtss/simulation/cbtc/ATS/service/TrainPositionService.java
index f0d900c13..ef2cdafe4 100644
--- a/src/main/java/club/joylink/rtss/simulation/cbtc/ATS/service/TrainPositionService.java
+++ b/src/main/java/club/joylink/rtss/simulation/cbtc/ATS/service/TrainPositionService.java
@@ -7,6 +7,8 @@ import club.joylink.rtss.simulation.cbtc.Simulation;
 import club.joylink.rtss.simulation.cbtc.build.SimulationBuildParams;
 import club.joylink.rtss.simulation.cbtc.data.map.Section;
 import club.joylink.rtss.vo.ws.TrainPosition;
+import com.google.common.cache.Cache;
+import com.google.common.cache.CacheBuilder;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Component;
 import org.springframework.stereotype.Service;
@@ -14,10 +16,7 @@ import org.springframework.util.CollectionUtils;
 import org.springframework.util.StringUtils;
 
 import javax.annotation.Resource;
-import java.util.Comparator;
-import java.util.List;
-import java.util.Map;
-import java.util.Objects;
+import java.util.*;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.stream.Collectors;
 
@@ -28,9 +27,9 @@ public class TrainPositionService {
     AtsTrainLoadService atsTrainLoadService;
     @Resource
     SimulationManager simulationManager;
-    final Map<Section.SectionRoadType,List<Section>> map = new ConcurrentHashMap<>();
+    private final static Cache<Section.SectionRoadType,List<Section>> ROAD_TYPE_CACHE = CacheBuilder.newBuilder().build();
+
     public void initTrainOrUpdate(String mapName,TrainPosition tp){
-//        this.simulationManager.getSimulationList().stream().filter(d->d.getb)
 
         List<Simulation> simulationList = this.findSimulationList(mapName);
         if(Objects.equals(true, CollectionUtils.isEmpty(simulationList))){
@@ -38,21 +37,40 @@ public class TrainPositionService {
             return;
         }
 
+        List<Section> sectionList = findDirectionAllSection(simulationList.get(0),tp.getRoadType());
         for (Simulation sim : simulationList) {
 
         }
     }
 
-    private void findSection(Simulation sim,TrainPosition tp,Section.SectionRoadType roadType){
-  /*      Section.SectionRoadType roadType = Section.SectionRoadType.LEFT;
-        if(tp.getDirection() == 1){
-            roadType = Section.SectionRoadType.RIGHT;
-        }*/
-        List<Section> list = sim.getRepository().getSectionList();
-
-        list.stream().filter(d->d.getRoadType() == roadType).sorted((o1, o2) -> Integer.compare(1,2)).collect(Collectors.toList());
+    private void findSecion(List<Section> sectionList,TrainPosition tp){
+        int i = 0;
+        Section findSection;
+        for (Section section : sectionList) {
+            if(tp.isRight()){
+                if(tp.getLocation() <= section.getKmMax()){
+                    findSection = section;
+                    break;
+                }
+            }else{
 
+            }
+            i++;
+        }
     }
+
+
+    private static synchronized List<Section> findDirectionAllSection(Simulation sim,Section.SectionRoadType roadType){
+        List<Section> list = ROAD_TYPE_CACHE.getIfPresent(roadType);
+        if(Objects.equals(true,CollectionUtils.isEmpty(list))){
+            list = sim.getRepository().getSectionList();
+            list = list.stream().filter(d->d.getRoadType() == roadType)
+                    .sorted(Comparator.comparing(Section::getKmMin)/*.reversed()*/).collect(Collectors.toList());
+            ROAD_TYPE_CACHE.put(roadType,list);
+        }
+        return list;
+    }
+
     private List<Simulation> findSimulationList(String mapName){
         return this.simulationManager.getSimulationList().stream().filter(d->{
             if(d instanceof Simulation){
diff --git a/src/main/java/club/joylink/rtss/vo/ws/TrainPosition.java b/src/main/java/club/joylink/rtss/vo/ws/TrainPosition.java
index 32d053f17..a9d5e8c5a 100644
--- a/src/main/java/club/joylink/rtss/vo/ws/TrainPosition.java
+++ b/src/main/java/club/joylink/rtss/vo/ws/TrainPosition.java
@@ -1,5 +1,6 @@
 package club.joylink.rtss.vo.ws;
 
+import club.joylink.rtss.simulation.cbtc.data.map.Section;
 import lombok.Data;
 import lombok.NoArgsConstructor;
 
@@ -7,6 +8,20 @@ import lombok.NoArgsConstructor;
 @NoArgsConstructor
 public class TrainPosition {
     private String trainTripNum;
+    /**
+     * 方向1=上行（向右），0=下行(向左)
+     */
     private int direction;
     private float location;
+
+    public Section.SectionRoadType getRoadType(){
+        Section.SectionRoadType type = Section.SectionRoadType.LEFT;
+        if(this.direction == 1){
+            return Section.SectionRoadType.RIGHT;
+        }
+        return type;
+    }
+    public boolean isRight(){
+        return this.direction == 1;
+    }
 }