diff --git a/core/kt-osrd-rjs-parser/src/main/kotlin/fr/sncf/osrd/RawInfraRJSParser.kt b/core/kt-osrd-rjs-parser/src/main/kotlin/fr/sncf/osrd/RawInfraRJSParser.kt
index 4391ecec06e..cbb0c08c8c8 100644
--- a/core/kt-osrd-rjs-parser/src/main/kotlin/fr/sncf/osrd/RawInfraRJSParser.kt
+++ b/core/kt-osrd-rjs-parser/src/main/kotlin/fr/sncf/osrd/RawInfraRJSParser.kt
@@ -797,6 +797,10 @@ fun parseRJSInfra(rjsInfra: RJSInfra): RawInfra {
                 props["chLongLabel"] = sncf.chLongLabel
                 props["trigram"] = sncf.trigram
             }
+            val weight = operationalPoint.weight
+            if (weight != null) {
+                props["weight"] = weight
+            }
             if (opPart.extensions?.sncf != null) props["kp"] = opPart.extensions!!.sncf!!.kp
             val partId =
                 builder.operationalPointPart(
diff --git a/core/osrd-railjson/src/main/java/fr/sncf/osrd/railjson/schema/infra/RJSOperationalPoint.java b/core/osrd-railjson/src/main/java/fr/sncf/osrd/railjson/schema/infra/RJSOperationalPoint.java
index 6800efe54b4..f4f395793fe 100644
--- a/core/osrd-railjson/src/main/java/fr/sncf/osrd/railjson/schema/infra/RJSOperationalPoint.java
+++ b/core/osrd-railjson/src/main/java/fr/sncf/osrd/railjson/schema/infra/RJSOperationalPoint.java
@@ -14,11 +14,15 @@ public class RJSOperationalPoint implements Identified {
     @Nullable
     public RJSOperationalPointExtensions extensions;
 
+    @Nullable
+    public String weight;
+
     public RJSOperationalPoint(
-            String id, List<RJSOperationalPointPart> parts, @Nullable RJSOperationalPointExtensions extensions) {
+            String id, List<RJSOperationalPointPart> parts, @Nullable RJSOperationalPointExtensions extensions, @Nullable String weight) {
         this.id = id;
         this.parts = parts;
         this.extensions = extensions;
+        this.weight = weight;
     }
 
     @Override
diff --git a/core/src/main/kotlin/fr/sncf/osrd/api/api_v2/path_properties/PathPropResponse.kt b/core/src/main/kotlin/fr/sncf/osrd/api/api_v2/path_properties/PathPropResponse.kt
index 8267422efea..2ca9d675556 100644
--- a/core/src/main/kotlin/fr/sncf/osrd/api/api_v2/path_properties/PathPropResponse.kt
+++ b/core/src/main/kotlin/fr/sncf/osrd/api/api_v2/path_properties/PathPropResponse.kt
@@ -32,7 +32,8 @@ data class OperationalPointResponse(
     val id: String,
     val part: OperationalPointPartResponse,
     val extensions: OperationalPointExtensions?,
-    val position: Offset<Path>
+    val position: Offset<Path>,
+    val weight: Long?
 )
 
 data class OperationalPointPartResponse(
diff --git a/core/src/main/kotlin/fr/sncf/osrd/api/api_v2/path_properties/PathPropResponseConverter.kt b/core/src/main/kotlin/fr/sncf/osrd/api/api_v2/path_properties/PathPropResponseConverter.kt
index 8b7a7fd2b67..c45b6dd6c51 100644
--- a/core/src/main/kotlin/fr/sncf/osrd/api/api_v2/path_properties/PathPropResponseConverter.kt
+++ b/core/src/main/kotlin/fr/sncf/osrd/api/api_v2/path_properties/PathPropResponseConverter.kt
@@ -101,8 +101,9 @@ private fun makeOperationalPoints(
         val opExtensions =
             if (opSncfExtension == null && opIdExtension == null) null
             else OperationalPointExtensions(opSncfExtension, opIdExtension)
+        val weight = if (opPartProps["weight"] == null) null else opPartProps["weight"]!!.toLong()
         val opResult =
-            OperationalPointResponse(operationalPointId, opPartResult, opExtensions, offset)
+            OperationalPointResponse(operationalPointId, opPartResult, opExtensions, offset, weight)
         res.add(opResult)
     }
     return res
diff --git a/editoast/openapi.yaml b/editoast/openapi.yaml
index df21a9065db..d494fc93178 100644
--- a/editoast/openapi.yaml
+++ b/editoast/openapi.yaml
@@ -8010,6 +8010,7 @@ components:
             - id
             - part
             - position
+            - weight
             properties:
               extensions:
                 $ref: '#/components/schemas/OperationalPointExtensions'
@@ -8024,6 +8025,12 @@ components:
                 format: int64
                 description: Distance from the beginning of the path in mm
                 minimum: 0
+              weight:
+                type: integer
+                format: int32
+                description: Importance of the operational point
+                nullable: true
+                minimum: 0
           description: Operational points along the path
           nullable: true
         slopes:
diff --git a/editoast/src/core/path_properties.rs b/editoast/src/core/path_properties.rs
index e298d8adbc5..4581e1c7548 100644
--- a/editoast/src/core/path_properties.rs
+++ b/editoast/src/core/path_properties.rs
@@ -78,6 +78,9 @@ pub struct OperationalPointOnPath {
     extensions: OperationalPointExtensions,
     /// Distance from the beginning of the path in mm
     position: u64,
+    /// Importance of the operational point
+    #[schema(required)]
+    weight: Option<u8>,
 }
 
 /// Zones along a path. Each value is associated to a range of the path.
diff --git a/front/src/applications/operationalStudies/__tests__/sampleData.ts b/front/src/applications/operationalStudies/__tests__/sampleData.ts
index a7d314b1168..5e0c1a90439 100644
--- a/front/src/applications/operationalStudies/__tests__/sampleData.ts
+++ b/front/src/applications/operationalStudies/__tests__/sampleData.ts
@@ -611,6 +611,7 @@ export const sampleWithMultipleOperationalPoints: NonNullable<
       },
     },
     position: 0,
+    weight: null,
   },
   {
     id: 'Mid_West_station',
@@ -625,6 +626,7 @@ export const sampleWithMultipleOperationalPoints: NonNullable<
       },
     },
     position: 12050000,
+    weight: null,
   },
   {
     id: 'Mid_East_station',
@@ -639,6 +641,7 @@ export const sampleWithMultipleOperationalPoints: NonNullable<
       },
     },
     position: 26500000,
+    weight: null,
   },
 ];
 
@@ -687,5 +690,6 @@ export const sampleWithOneOperationalPoint: OperationalPoint[] = [
       },
     },
     position: 4069000,
+    weight: null,
   },
 ];
diff --git a/front/src/applications/operationalStudies/helpers/upsertMapWaypointsInOperationalPoints.ts b/front/src/applications/operationalStudies/helpers/upsertMapWaypointsInOperationalPoints.ts
index 3af759c4c38..c276fe07bf9 100644
--- a/front/src/applications/operationalStudies/helpers/upsertMapWaypointsInOperationalPoints.ts
+++ b/front/src/applications/operationalStudies/helpers/upsertMapWaypointsInOperationalPoints.ts
@@ -35,6 +35,7 @@ export const upsertMapWaypointsInOperationalPoints = (
         },
         part: { track: step.track, position: step.offset },
         position: positionOnPath,
+        weight: null,
       };
 
       waypointCounter += 1;
diff --git a/front/src/common/api/generatedEditoastApi.ts b/front/src/common/api/generatedEditoastApi.ts
index bbbaf449098..6f92ba23046 100644
--- a/front/src/common/api/generatedEditoastApi.ts
+++ b/front/src/common/api/generatedEditoastApi.ts
@@ -2567,6 +2567,8 @@ export type PathProperties = {
         part: OperationalPointPart;
         /** Distance from the beginning of the path in mm */
         position: number;
+        /** Importance of the operational point */
+        weight: number | null;
       }[]
     | null;
   slopes?: {
diff --git a/front/src/modules/simulationResult/components/SpeedSpaceChart/__tests__/helpers.spec.ts b/front/src/modules/simulationResult/components/SpeedSpaceChart/__tests__/helpers.spec.ts
index 808f76924e4..d551a0eb0f3 100644
--- a/front/src/modules/simulationResult/components/SpeedSpaceChart/__tests__/helpers.spec.ts
+++ b/front/src/modules/simulationResult/components/SpeedSpaceChart/__tests__/helpers.spec.ts
@@ -48,6 +48,7 @@ describe('formatStops', () => {
           position: 0,
           track: 'track',
         },
+        weight: null,
       },
     ];
     const expected = [{ position: { start: 0 }, value: 'name ch' }];