diff --git a/src/repositories/GetterSetterRepository.ts b/src/repositories/GetterSetterRepository.ts
index ddcf68b..6327a20 100644
--- a/src/repositories/GetterSetterRepository.ts
+++ b/src/repositories/GetterSetterRepository.ts
@@ -19,6 +19,13 @@ export interface GetterSetterRepository extends GetterRepository {
   addOrUpdateOrderedStop(orderedStop: IOrderedStop): Promise<void>;
   addOrUpdateEta(eta: IEta): Promise<void>;
 
+  removeSystem(systemId: string): Promise<void>;
+  removeRoute(routeId: string): Promise<void>;
+  removeShuttle(shuttleId: string): Promise<void>;
+  removeStop(stopId: string): Promise<void>;
+  removeOrderedStop(stopId: string, routeId: string): Promise<void>;
+  removeEta(shuttleId: string, stopId: string): Promise<void>;
+
   clearSystemData(): Promise<void>;
   clearRouteData(): Promise<void>;
   clearShuttleData(): Promise<void>;
diff --git a/src/repositories/UnoptimizedInMemoryRepository.ts b/src/repositories/UnoptimizedInMemoryRepository.ts
index c24a3c5..61191e8 100644
--- a/src/repositories/UnoptimizedInMemoryRepository.ts
+++ b/src/repositories/UnoptimizedInMemoryRepository.ts
@@ -148,6 +148,24 @@ export class UnoptimizedInMemoryRepository implements GetterSetterRepository {
     }
   }
 
+
+  public async removeEta(shuttleId: string, stopId: string): Promise<void> {
+  }
+
+  public async removeOrderedStop(stopId: string, routeId: string): Promise<void> {
+  }
+
+  public async removeRoute(routeId: string): Promise<void> {
+  }
+
+  public async removeShuttle(shuttleId: string): Promise<void> {
+  }
+
+  public async removeStop(stopId: string): Promise<void> {
+  }
+
+  public async removeSystem(systemId: string): Promise<void> {
+  }
   public async clearSystemData() {
     this.systems = [];
   }