diff --git a/editoast/openapi.yaml b/editoast/openapi.yaml
index 92450927f9c..7f2dc2dc668 100644
--- a/editoast/openapi.yaml
+++ b/editoast/openapi.yaml
@@ -2764,7 +2764,9 @@ paths:
           content:
             application/json:
               schema:
-                $ref: '#/components/schemas/WorkScheduleProjectResponse'
+                type: array
+                items:
+                  $ref: '#/components/schemas/WorkScheduleProjection'
 components:
   schemas:
     AddOperation:
@@ -9989,17 +9991,14 @@ components:
         work_schedule_group_id:
           type: integer
           format: int64
-    WorkScheduleProjectResponse:
-      type: object
-      required:
-      - projections
-      properties:
-        projections:
-          type: array
-          items:
-            $ref: '#/components/schemas/WorkScheduleProjection'
     WorkScheduleProjection:
       type: object
+      description: |-
+        This struct represents the projection of one work_schedule on a path.
+        it takes the type, start time, end time of the work_schedule
+        as well as a list of ranges (a, b),
+        where a and b are the distance of the beginning and end of the track range
+        relatively to the beginning of the path.
       required:
       - type
       - start_date_time
diff --git a/editoast/src/views/work_schedules.rs b/editoast/src/views/work_schedules.rs
index 87dc5e4a44a..b93d6fb472d 100644
--- a/editoast/src/views/work_schedules.rs
+++ b/editoast/src/views/work_schedules.rs
@@ -37,7 +37,6 @@ editoast_common::schemas! {
     WorkScheduleCreateForm,
     WorkScheduleCreateResponse,
     WorkScheduleProjectForm,
-    WorkScheduleProjectResponse,
     WorkScheduleProjection,
     WorkScheduleItemForm,
     WorkScheduleType,
@@ -191,11 +190,11 @@ struct WorkScheduleProjectForm {
     path_track_ranges: Vec<CoreTrackRange>,
 }
 
-#[derive(Serialize, Deserialize, ToSchema, PartialEq, Debug)]
-struct WorkScheduleProjectResponse {
-    projections: Vec<WorkScheduleProjection>,
-}
-
+/// This struct represents the projection of one work_schedule on a path.
+/// it takes the type, start time, end time of the work_schedule
+/// as well as a list of ranges (a, b),
+/// where a and b are the distance of the beginning and end of the track range
+/// relatively to the beginning of the path.
 #[derive(Serialize, Deserialize, ToSchema, PartialEq, Debug)]
 struct WorkScheduleProjection {
     #[serde(rename = "type")]
@@ -211,8 +210,8 @@ struct WorkScheduleProjection {
     request_body = WorkScheduleProjectForm,
     responses(
         (
-            status = 201, 
-            body = WorkScheduleProjectResponse, 
+            status = 201,
+            body = Vec<WorkScheduleProjection>,
             description = "Returns a list of work schedule whose track ranges intersect the given path"
         ),
     )
@@ -224,7 +223,7 @@ async fn project(
         work_schedule_group_id,
         path_track_ranges,
     }): Json<WorkScheduleProjectForm>,
-) -> Result<Json<WorkScheduleProjectResponse>> {
+) -> Result<Json<Vec<WorkScheduleProjection>>> {
     let authorized = authorizer
         .check_roles([BuiltinRole::WorkScheduleRead].into())
         .await
@@ -243,7 +242,7 @@ async fn project(
     let projections = work_schedules
         .into_iter()
         .filter_map(|ws| {
-            let ws_track_ranges: Vec<CoreTrackRange> = ws
+            let ws_track_ranges: Vec<_> = ws
                 .track_ranges
                 .into_iter()
                 .map(|tr| CoreTrackRange {
@@ -269,7 +268,7 @@ async fn project(
             }
         })
         .collect();
-    Ok(Json(WorkScheduleProjectResponse { projections }))
+    Ok(Json(projections))
 }
 
 #[cfg(test)]
@@ -484,20 +483,20 @@ pub mod test {
         let work_schedule_project_response = app
             .fetch(request)
             .assert_status(StatusCode::OK)
-            .json_into::<WorkScheduleProjectResponse>();
+            .json_into::<Vec<WorkScheduleProjection>>();
 
         // THEN
-        let expected = WorkScheduleProjectResponse {
-            projections: expected_path_position_ranges
-                .into_iter()
-                .enumerate()
-                .map(|(index, position_ranges)| WorkScheduleProjection {
-                    work_schedule_type: work_schedules[index].work_schedule_type,
-                    start_date_time: work_schedules[index].start_date_time,
-                    end_date_time: work_schedules[index].end_date_time,
-                    path_position_ranges: position_ranges,
-                }).collect()
-        };
+        let expected: Vec<WorkScheduleProjection> = expected_path_position_ranges
+            .into_iter()
+            .enumerate()
+            .map(|(index, position_ranges)| WorkScheduleProjection {
+                work_schedule_type: work_schedules[index].work_schedule_type,
+                start_date_time: work_schedules[index].start_date_time,
+                end_date_time: work_schedules[index].end_date_time,
+                path_position_ranges: position_ranges,
+            })
+            .collect();
+
         assert_eq!(work_schedule_project_response, expected);
     }
 }
diff --git a/front/src/common/api/generatedEditoastApi.ts b/front/src/common/api/generatedEditoastApi.ts
index b6245aa3c6e..7af7a3e2471 100644
--- a/front/src/common/api/generatedEditoastApi.ts
+++ b/front/src/common/api/generatedEditoastApi.ts
@@ -1491,7 +1491,7 @@ export type PostWorkSchedulesApiArg = {
   workScheduleCreateForm: WorkScheduleCreateForm;
 };
 export type PostWorkSchedulesProjectApiResponse =
-  /** status 201 Returns a list of work schedule whose track ranges intersect the given path */ WorkScheduleProjectResponse;
+  /** status 201 Returns a list of work schedule whose track ranges intersect the given path */ WorkScheduleProjection[];
 export type PostWorkSchedulesProjectApiArg = {
   workScheduleProjectForm: WorkScheduleProjectForm;
 };
@@ -3052,9 +3052,6 @@ export type WorkScheduleProjection = {
   start_date_time: string;
   type: WorkScheduleType;
 };
-export type WorkScheduleProjectResponse = {
-  projections: WorkScheduleProjection[];
-};
 export type WorkScheduleProjectForm = {
   path_track_ranges: TrackRange[];
   work_schedule_group_id: number;