There are lots of fancy shoes and contraptions for running safely on ice. The concept I find most interesting is DIY Ice Spikes - basically 10 hex screws inserted into the sole of each shoe. Inexpensive, and apparently effective. I haven't tried it, but I'm intrigued. You can find directions and pictures at Competitor magazine: http://running.competitor.com/2013/12/news/diy-snow-running-spikes_91843.
Their directions say:
- Purchase 20 3/8-inch hex-head sheet metal screws (size #8 or #10) for each pair of shoes. (Hex-head screws work best because they have jagged edges.) Total cost will be about $5.
- Position screws around the perimeter of the outsole—six around the forefoot and four in the heel. Avoid areas that might poke feet upon impact with the ground.
- Twist screws into the outsole rubber. (Pre-drilling with a 1/16 bit will help.)
- Run with confidence over anything that is slippery, wet or frozen. (Note: They’re most effective on ice and small amounts of snow on roads or hard-packed trails.)