Theres a little bit of LTE activity on Vandalia Road as well. I live where Four Seasons Blvd and Vandalia iRd. I get mixed signals almost every night. I do notice even in 3G my data has extremely progressed.
As far as Winston Salem, I work on University Parkway majority of the road has LTE but at my job THERES NO HOPE! LOL Can't call, text, browse internet. Not one single thing I can do for a 8-10 hr shift!