You've got a fun local peculiarity on your hands! This sounds like a situation where roads intersect at a complex angle, creating a four-way intersection where each pair of roads could technically be described as forming the corner.Here's why you can have so many "corners": Odd Angles

The roads likely intersect at angles other than 90 degrees. This makes the "corner" less defined and allows for multiple interpretations.

Short Road Segments

It's possible one or more of the road segments (Weesies and/or Walsh) are very short between the intersections with Fruitvale, making it feel like it's all one spot.*

Local Custom: Ultimately, the reason it's known this way is likely simply local habit and agreement. People have used the "Fruitvale and Fruitvale" name for so long, it's stuck! Flag for review