If you must drive in snowy conditions, make sure your car is prepared, and that you know how to handle road conditions. The following safe driving tips will be helpful when traveling in adverse weather conditions:
Use your headlights.
Do not use cruise control
Four-wheel and all-wheel vehicles do not stop or steer better on ice than two-wheel drive vehicles.
Leave extra room between your vehicle and the vehicle in front of you. And remember, the larger the vehicle, the longer the stopping distance.
Slow down when approaching intersections, off ramps, bridges, or shady spots.
Make sure your brakes, windshield wipers, defroster, heater and exhaust system are in top condition.
Check your antifreeze and be ready for colder temperatures.
If you get stuck...
Do not spin your wheels. This will only dig you in deeper.
Turn your wheels from side to side a few times to push snow out of the way.
Use a shovel to clear snow away from the wheels and the underside of the car.
Pour sand, kitty litter, gravel or salt in the path of the wheels, to help get traction.

Air temperature, wind, rain, snow, clothing, physical activity, can all be contributing factors to the losing one’s ability to maintain a normal body core temperature (98.6°F).
Hypothermia is a condition in which the body core temperature drops below that required for normal metabolism and body functions(96.0°F). It occurs when the body loses more heat that it can produce.
Systoms can begin as: shivering, slurred speech, loss of fine motor skills and advance into stiff muscles, low pulse, & unconsciousness.
Frost Bite is the medical condition where localized damage is caused to skin and other tissues due to extreme cold. Severity is measured in degrees as are burns.
Symptoms are white or yellowish waxy skin, numbness, affected area frozen on the surface, area still soft to the touch. As it progresses deeper underlying tissues also freeze and become hard and cold to the touch.  

Speed:
Slow Down when approaching all work zones. You will be in the work zone quicker than you think. 
Follow Posted Speed Limits, especially within construction zones, and try to maintain a consistent speed with the traffic flow. And adjust your speed for weather conditions.
Don't Resume Normal Speed until you see roadway signs indicating it's safe to do so.

Space:
Leave Room. Leave adequate braking room between your vehicle and the one ahead of you. Count out at least two seconds from the time the car ahead of you passes an object and the time your own car passes that object.  Also, keep a safe distance between your vehicle and traffic barriers, trucks, construction equipment and workers. .
Leave Yourself an Out. When stopped in traffic, leave a safety zone between you and the vehicle in front of you. A good rule of thumb is that when stopped in traffic you should be able to see the bottom of the tires of the vehicle in front of you.

Stress:
Keep Your Cool. Calm down and don't rush. Remember, the temporary inconvenience of a construction zone will pay off with greatly improved roads soon.
Pay Attention. Avoid cell phone or radio distractions, as well as those of other stopped cars or construction.
Expect Delays. Leave a bit earlier, if necessary, to arrive at your destination on time. Consider using an alternate route that bypasses the construction zones.