Should a point be added for the Derry St interchange in the middle of the Eisenhower Interchange? IMO, it is its own interchange within an interchange.
Also I am unsure if Pottstown Pike should be added as an alternate point at the High St interchange on the 2-lane portion of the West Chester Bypass. I looked up different sources including Chester County GIS and was unable to exactly determine where Pottstown Pike becomes High St. (the best guess I have is the West Chester borough line which seems to be at the Goshen Rd intersection)