diff --git a/README.md b/README.md
index cccf8ab..0120445 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,7 @@ poi_from_bbox = OsmGt.poi_from_bbox(
 )
 
 # 2 methods available:
-poi_study_area_data_wkt = poi_from_bbox.study_area_geom()  # to get the wkt of the data
+poi_study_area_data_wkt = poi_from_bbox.study_area_geom()  # to get the shapely Polygon of the study data
 poi_gdf = poi_from_bbox.get_gdf()  # to get the geodataframe containing all the POIs
 
 
@@ -44,13 +44,13 @@ roads_from_location = OsmGt.roads_from_location(
 )
 
 roads_from_bbox = OsmGt.roads_from_bbox(
-	(-74.018433, 40.718087, -73.982749, 40.733356),
+	(4.0237426757812, 46.019674567761, 4.1220188140869, 46.072575637028),
 	mode="pedestrian",  # 'pedestrian' or 'vehicle' supported
 	additionnal_nodes=None,  # optional, to connect nodes on the roads network (geodataframe or None)
 )
 
 # 3 methods available:
-roads_study_area_data_wkt = roads_from_location.study_area_geom()  # to get the wkt of the data
+roads_study_area_data_wkt = roads_from_location.study_area_geom()  # to get the shapely Polygon of the study data
 roads_gdf = roads_from_location.get_gdf()  # to get the geodataframe containing all the roads
 roads_graph = roads_from_location.get_graph()  # to get the graph (graph-tool graph) of the osm network 
 ```
diff --git a/osmgt/compoments/core.py b/osmgt/compoments/core.py
index fd160cd..dfe3aa8 100644
--- a/osmgt/compoments/core.py
+++ b/osmgt/compoments/core.py
@@ -72,8 +72,9 @@ def from_bbox(self, bbox_value):
         self._bbox_mode = True
         self.logger.info(f"From bbox: {bbox_value}")
         self.logger.info("Loading data...")
+        self.study_area_geom = box(*bbox_value, ccw=True)
+        # reordered because of nominatim
         self._bbox_value = (bbox_value[1], bbox_value[0], bbox_value[3], bbox_value[2])
-        self.study_area_geom = box(*self._bbox_value, ccw=True)
 
     def _get_study_area_from_bbox(self, bbox):
         return
diff --git a/osmgt/compoments/roads.py b/osmgt/compoments/roads.py
index 2703ff9..8655ab0 100644
--- a/osmgt/compoments/roads.py
+++ b/osmgt/compoments/roads.py
@@ -74,10 +74,9 @@ def get_graph(self):
         graph = GraphHelpers(is_directed=network_queries[self._mode]["directed_graph"])
 
         for feature in self._output_data:
-            geom_coords = feature[self._GEOMETRY_FIELD].coords
             graph.add_edge(
-                Point(geom_coords[0]).wkt,
-                Point(geom_coords[-1]).wkt,
+                Point(feature[self._GEOMETRY_FIELD].coords[0]).wkt,
+                Point(feature[self._GEOMETRY_FIELD].coords[-1]).wkt,
                 feature[self._TOPO_FIELD],
                 shape(feature[self._GEOMETRY_FIELD]).length,
             )
diff --git a/tests/test_main.py b/tests/test_main.py
index 9f3d6ca..b60f606 100644
--- a/tests/test_main.py
+++ b/tests/test_main.py
@@ -106,7 +106,7 @@ def test_run_from_bbox_func_usa(pois_default_columns_from_output, roads_default_
     for colunm_expected in roads_default_columns_from_output:
         assert colunm_expected in columns_computed
 
-    #check graph
+    # check graph
     assert len(list(graph_computed.edges())) > 0
     assert len(list(graph_computed.vertices())) > 0
     assert type(graph_computed.vertices_content) == dict
@@ -114,7 +114,7 @@ def test_run_from_bbox_func_usa(pois_default_columns_from_output, roads_default_
 
 
 def test_if_path_can_be_computed(points_gdf_from_coords):
-
+    # TODO add the same test with bbox...
     location_name = "roanne"
     poi_from_web_found_gdf = OsmGt.poi_from_location(location_name).get_gdf()