The City of Charlotte has a Snow and Ice removal plan that is put into action is an ice or snow storm is predicted. Major thoroughfares and highways will be cleared first. City crews usually spread salt and/or slag on the roads.
If a large enough accumulation of snow has fallen, then streets will be scrapped. Residential streets are not cleared by City crews. In the event of major storm listen to your local radio or television. You will be advised of closings and/or late openings.
Here's some other information you may find helpful:
Before a snow or ice storm
During a snow or ice storm
Snow and ice facts
Winter driving tips