A statistical indicator called the Storefront Index measures the number and concentration of customer-facing businesses in the nation’s large metropolitan areas. A series of maps represent location, size and intensity of neighbourhood business clusters down to the street level for 51 metropolitan areas. The Storefront Index, claims the writer, is one indicator of the relative size and robustness of the active streetscape in and around city centers. The index material is licensed under a Creative Commons Attribution license and it is openly available for further investigation to researchers. around the globe

References

• Joe Cortright, 2018. Quantifying Jane Jacobs. In City Commentary, full article and image available here