I'm not quite sure I understand what you mean by "inner lane" and "outer lane".  If the "inner lane" is the parking lot, then there is one entrance at the north end of the parking lot and two entrances at the south end.
You may be able to (a) see what I'm talking about and/or (b) find what you're looking for by using the overhead view at: 
https://qpublic.schneidercorp.com/Application.aspx?AppID=671&LayerID=11356&PageTypeID=1&KeyValue=0W78D0%20%20%20%20108000
