The NielsenIQ TDLinx database provides universal coverage and unique codes for every store in retail trade channels and for every outlet in on-premise trade channels. Available on PolicyMap are grocery stores (i.e., stores in the TDLinx grocery trade channel).
Points displayed on PolicyMap include the following store types from that database: supermarkets, supercenters, limited assortment stores, natural food stores and grocery warehouses. As part of their Limited Supermarket Access analysis, Reinvestment Fund defines a store service level – Full Service or Non-Full Service. Full Service grocery stores include Supercenters and Conventional Supermarkets. Non-Full Service grocery stores include Limited Assortment Supermarkets, Natural/Gourmet Food Stores and Grocery Warehouses.