That's what is strange. All of the streets in the French Quarter are one way streets, therefore I do not assign a curb approach to any of the orders. It is odd to me that it will route orders on one block of Bourbon, then skip a few blocks, then route a few more.
I am using Tele Atlas StreetMap 11.1.
115 Bourbon St., New Orleans, LA 70130 ---> Routed
144 Bourbon St., New Orleans, LA 70130 ---> Routed
209 Bourbon St., New Orleans, LA 70130 ---> Unreachable
226 Bourbon St., New Orleans, LA 70130 ---> Unreachable
407 Bourbon St., New Orleans, LA 70130 ---> Unreachable
411 Bourbon St., New Orleans, LA 70130 ---> Unreachable
718 Bourbon St., New Orleans, LA 70116 ---> Routed
901 Bourbon St., New Orleans, LA 70116 ---> Routed