Try at a constant speed, as much as possible to walk a straight line, less and line. To eliminate a gap on the looting of bad driving habits. Poor roads, waiting for red lights, lane changing, this phenomenon is more prominent, driving habits not only to increase insecurity in driving and vehicle fu

Constant speed as much as possible, as much as possible, and gone straight line. You want to eliminate there are neutral on the bad driving habits. In particular, on the road, waiting for a red light, and lane change, this phenomenon i