After a large snowstorm hits and you being riding again, road conditions can vary greatly. You could be riding on a clear dry pavement one moment and crossing a field of ice or encountering snow banks the next. While it's always important to stay alert on a bike, you should be extra cautious when stubborn ice continues to cause problems.
Staying alert means choosing roads that are better for riding and watching for dangerous patches. Reconsider taking those quieter, residential roads if they seem icy and dangerous, as they often are long after large storms. Keep an eye out on your intended path ahead so you can anticipate rough areas. If an area becomes too dangerous to ride over, step off and walk your bike until you get to a safe spot.
Another popular tip from the cycling community is to lower the bike's seat slightly lower than you normally would. Not only does this lower your center of gravity and help with traction, but it puts your feet closer to the road if you suddenly need step down. Try not to tense up your body, stay loose and agile so that you can respond to snow and ice conditions without over-correcting or braking too quickly. All of which can lead to falls.
While riding over icy and snow roads can be scary, it's certainly not impossible so long as you stay alert. With a little practice and safe riding habits you'll be a winter-riding pro in no time!
For more times about riding on snow and ice, check out this article by Tony Farrelly: Cycling Survival.