The problem with the sidewalk width could have been solved by using tree grates instead of a continuous planter. Planters are not appropriate for such an urban setting. Setting the buildings back from the right of way line (the back of the sidewalk) would make the scale of the street seem too wide. Also, the entries to the shops could be recessed so that the outswinging doors would not reduce the already narrow sidewalk width. I am planning to write a full post on this aspect of the Uptown project on the blog The Civic Art: Cleveland.