To maneuver effectively on a road with sharp curves, how should the driver adjust the turning arc of the vehicle?

Adjusting the turning arc of the vehicle by following the sharpness of the curve is crucial for navigating effectively on roads with sharp turns. This approach helps maintain control and stability while ensuring that the vehicle remains within the lane boundaries. When a driver aligns the turning arc with the curve's trajectory, it allows for a smoother transition through the turn, reducing the risk of skidding or losing control. Additionally, following the natural path of the curve minimizes the need for excessive steering inputs, which can further enhance the driver’s reaction time and ability to respond to any unforeseen obstacles or conditions.

Braking sharply can lead to loss of traction on the wheels and increase the likelihood of skidding, especially on curves where maintaining steady control is vital. Quickly turning the steering wheel can result in abrupt changes in direction, which can destabilize the vehicle and lead to accidents. Stopping before the curve is impractical in most scenarios, as it would disrupt the flow of traffic and may not be necessary unless immediate hazards are present. Thus, adjusting the vehicle’s turning arc by following the curve is the safest and most effective method.