Check out this map from City Observatory that plots storefronts in various cities–including Richmond. It’s part of report documenting The Storefront Index:
Storefront clusters are closely correlated to walkability. Because strong clusters of businesses encourage pedestrian activity, help activate nearby public spaces and provide the “eyes on the street” that reduce crime. And storefront businesses are an important source of employment, frequently offering entry-level jobs for neighborhood residents…Changes in the concentration of storefront businesses in a neighborhood are an important indicator of neighborhood health.
Read the entire report here (PDF).