Feature Request: Convert OSM Features to Densities

[soheir96]

Description:

We currently extract total counts and lengths for OSM features within district boundaries. To enhance our analysis, we need to convert these into densities, providing insights per unit area.

Proposed Enhancement:

1. Add Density Calculations for OSM Features: Convert point counts and road lengths into densities per square kilometer within each district.
2. Integration: Modify the output to include density metrics for each feature.

Steps to Implement:

1. Calculate the area of each district in square kilometers.

district_boundary_dataframe['area_km2'] = district_boundary_dataframe['geometry'].area / 1e6

2. For each feature:

• Calculate point_density as point_count / district_area_km2.
• Calculate train_length or road_length_density as road_length / district_area_km2.

3. Update the OSM features dictionary to store densities:

osm_features_districts[f"{feature_name}_density"] = [
    feature_value / area_km2 for feature_value, area_km2 in zip(feature_values, district_boundary_dataframe['area_km2'])
]

4. Ensure these new metrics are included in the final osm_features_dataframe.

Benefits:

• Provides normalised metrics that allow comparison between districts of different sizes.
• Facilitates more detailed urban and spatial analyses.

Additional Notes:

• Update all relevant documentation and ensure any dependent analytics reflect these new metrics.
• Consider visualizing these densities to better interpret spatial patterns.