It would take more to convince me that parking restrictions are the cause of an increased vacancy rate.
Rather, it seems more likely that Carson street is no longer the only popular place to go out on the town. It used to have the majority of bars and restaurants that rose above the neighborhood hole in the wall level. That is no longer the case. Foodie restaurants and destination bars have popped up everywhere.
I can't remember the last time a friend was excited to go to a place on the south side. That's not meant as an insult or criticism of the neighborhood. Just observing that the buzz has moved elsewhere.
Edit: I was interested in the topic and did some more reading. I have changed my mind and do agree it is hurting businesses.
http://www.post-gazette.com/local/city/2...uth-Side-businesses/stories/201603170004
Although, it does seem hard to determine just how big the impact is. Other neighborhoods have taken off and are obviously taking customers who would otherwise have gone to the southside.