diff --git a/ra2ce/analysis/damages/damages_utils.py b/ra2ce/analysis/damages/damages_utils.py
index 21f15c0f6..448ae4d12 100644
--- a/ra2ce/analysis/damages/damages_utils.py
+++ b/ra2ce/analysis/damages/damages_utils.py
@@ -19,7 +19,6 @@
     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 """
 
-
 import logging
 from typing import Any, List
 
@@ -130,10 +129,11 @@ def create_summary_statistics(gdf: GeoDataFrame) -> dict:
 
     # get a default value if any key of the dictionary is nan
     # (because the mode operation on the 'lanes' column for a road type results in an empty array)
-    default_value = np.mean(
+    lanes_values = np.mean(
         list(_val for _val in _lanes_dict.values() if not np.isnan(_val))
     )
-
+    # Round the mean to the nearest integer
+    default_value = np.ceil(lanes_values)
     # Replace nan with the calculated average
     return {
         _road_type: _lanes if not np.isnan(_lanes) else default_value
diff --git a/tests/analysis/damages/test_damages_utils.py b/tests/analysis/damages/test_damages_utils.py
index c2640c9da..2db7a5526 100644
--- a/tests/analysis/damages/test_damages_utils.py
+++ b/tests/analysis/damages/test_damages_utils.py
@@ -69,8 +69,8 @@ def test_clean_lane_data(self):
         [
             pytest.param([0, 1, 3], [0, 1, 3], id="Valid lanes"),
             pytest.param([np.nan, 1, 3], [2, 1, 3], id="First lane invalid"),
-            pytest.param([0, np.nan, 3], [0, 1.5, 3], id="Middle lane invalid"),
-            pytest.param([0, 1, np.nan], [0, 1, 0.5], id="Last lane invalid"),
+            pytest.param([0, np.nan, 3], [0, 2, 3], id="Middle lane invalid"),
+            pytest.param([0, 1, np.nan], [0, 1, 1], id="Last lane invalid"),
             pytest.param(
                 [np.nan, np.nan, np.nan],
                 [np.nan, np.nan, np.nan],