Its winter.  The roads are icy.  Prepare.

Winter weather presents many hazards including slippery roads (ice/snow).  My first year in Colorado I remember being told a safety driving practice beneficial to us former flatlanders.  When traveling down hill on a road, slow down during in the straightaways and ease off the brake in turns.  Reason: Loss of traction.  As you now, maintaining tire traction on the road surface is key to remaining on the road.  The inertia a vehicle experiences in turns may be sufficient to loss traction and leave the road.

So think ahead.  If the road is snowy/icy/black ice, you travel speed should be lower than if on dry pavement. When heading toward a turn, even if already traveling at lower speeds, gently apply your brakes to slow even further and then ease up/take foot off brake during the turn itself.

Be safe and stay on the road.