Counting all the storefronts on a section of Taiping Street (太平西街) in Liuzhou (柳州).
The 119 meters (390 feet) section is shown below:

A longer section of Taiping Street is highlighted in orange below (Guangming SLOW Street highlighted in cyan):

We start with the north side (river side) of the street, moving from west to east.
Below: 4 storefronts

Below: 3 additional storefronts

Below: 3 additional storefronts

Below: 2 additional storefronts

Below: 3 additional storefronts

Below: 3 additional storefronts

Below: 3 additional storefronts

Total storefronts on north side (river side): 21.
Moving on to the south side (hill side) of the street. Moving from east to west.
Below: 4 storefronts

Below: 1 additional storefront

Below: 3 additional storefronts

Below: 2 additional storefronts

Below: 3 additional storefronts

Below: 4 additional storefronts

Below: 4 additional storefronts

Total storefronts on south side (hill side): also 21.
With a total of 42 storefronts on this ~119 meter section, Taiping Street has a linear storefront density of ~353 / km (~568 / mile).
Additional photos along Taiping Street (mostly farther west):