Driving Techniques in Winter

There has been much debate on the subject of jackknifing and driver techniques have been studied to find the most effective methods of maintaining control of a tractor semi-trailer.

1. The most effective technique for recovery from a jackknife on ice is almost complete reliance on steering with little or no use of accelerator or brakes.

2. A prompt start in correcting a jackknife is important.

3. Experience and practice count. Drivers with the most experience have greater confidence and better control.

Directional Control

Directional control is best with all the wheels rolling. The tractor is most likely to jackknife when the drive wheels of the tractor are locked and the front and trailer wheels are rolling. When the trailer wheels are locked, a trailer jackknife can also develop. Brakes on empty vehicles still have all the power necessary for a full load. When the truck is unloaded, it’s easy to overbrake. So, when driving on a light or empty unit, brake with extra care.

Overpowering and Spinning

Power should be applied cautiously. Spinning the drive wheels risks a jackknife. This can easily occur on icy upgrades and usually result in a tractor jackknife that blocks the road and ties up traffic.

Brake Before Turning

Jackknifing often develops while braking for a curve. Start your braking or gearing down well before the turn, get down to a safe and easy turning speed, then take the turn with all the wheels rolling.

Read here: The Six Primary Hazards of Winter Driving

Read here: Prepare Early for Winter