Update app.py

app.py

@@ -33,7 +33,7 @@ def process_input(address, selected_option, additional_input):
     # Load Zone Table of Transportation Analysis
     df = pd.read_csv("./zone_table.csv")
     df = df.loc[df['Development Type']==selected_option] 
-    threshold_value = df.loc[:, f"Zone {zone}"]
+    threshold_value = df.loc[:, f"Zone {zone}"].values.item()
 
     if additional_input < threshold_value:
         transport_analysis_needed = False