diff --git a/analysis/database/accident_copy.sql b/analysis/database/accident_copy.sql
index 2e23c7b..559746c 100644
--- a/analysis/database/accident_copy.sql
+++ b/analysis/database/accident_copy.sql
@@ -3,6 +3,7 @@ drop table if exists accident_copy;
 create table accident_copy as
     select * from accidents;
 alter table accident_copy add severity varchar;
+alter table  accident_copy add foreign key (accidentuid) references accidents;
 update accident_copy set severity = 'Accident with property damage'
 where accidentseveritycategory='as4';
 
diff --git a/analysis/database/mivcount_copy b/analysis/database/assertions.sql
similarity index 100%
rename from analysis/database/mivcount_copy
rename to analysis/database/assertions.sql
diff --git a/analysis/database/fbcount_copy.sql b/analysis/database/fbcount_copy.sql
index 11065e7..069c346 100644
--- a/analysis/database/fbcount_copy.sql
+++ b/analysis/database/fbcount_copy.sql
@@ -6,10 +6,12 @@ CREATE TABLE fbcount_copy AS
 ALTER TABLE fbcount_copy ADD fuss_total INTEGER;
 UPDATE fbcount_copy SET fuss_total = fuss_in + fuss_out;
 
+
+
 ALTER TABLE fbcount_copy
     DROP COLUMN IF EXISTS fuss_in,
     DROP COLUMN IF EXISTS fuss_out,
-    ADD PRIMARY KEY (id);
+    ADD FOREIGN KEY (id) REFERENCES footbikecount;
 
 ALTER TABLE fbcount_copy ADD velo_total INTEGER;
 UPDATE fbcount_copy SET velo_total = velo_in + velo_out;
diff --git a/analysis/map.py b/analysis/map.py
index 4edccc1..6d7794e 100644
--- a/analysis/map.py
+++ b/analysis/map.py
@@ -271,7 +271,6 @@ def generate_contrasting_gradient(num_colors):
     return gradient
 
 
-
 if __name__ == "__main__":
     time_map = folium.Map(
         location=zurich_coordinates,
@@ -299,5 +298,35 @@ if __name__ == "__main__":
     create_heat_map_toggle(toggle_map)
 
     ## Save Maps ============================================================================================
-    save_map_as_html(toggle_map, "heat_map_toggle")
+    save_map_as_html(toggle_map, "html/heat_map_toggle")
     save_map_as_html(time_map, "html/heat_map_time")
+
+    ## Create Maps with fixed center=============================================================================
+    time_map_fix = folium.Map(
+        location=zurich_coordinates,
+        zoom_start=13,
+        zoom_control=True,
+        dragging=False,
+        scrollWheelZoom=True,
+        doubleClickZoom=False,
+        tiles="cartodb positron"
+    )
+
+    toggle_map_fix = folium.Map(
+        location=zurich_coordinates,
+        zoom_start=13,
+        zoom_control=True,
+        dragging=False,
+        scrollWheelZoom=True,
+        doubleClickZoom=False,
+        tiles="cartodb positron"
+    )
+
+    #setup_views()
+
+    create_heat_map_with_time(time_map_fix)
+    create_heat_map_toggle(toggle_map_fix)
+
+    ## Save Maps ============================================================================================
+    save_map_as_html(toggle_map_fix, "html/heat_map_toggle_fix")
+    save_map_as_html(time_map_fix, "html/heat_map_time_fix")