Council on Law Enforcement Education and Training (CLEET) Law Enforcement Driver Practice Test

Which type of cornering is more challenging due to its reducing radius?

1. Constant radius

2. Increasing radius

3. Decreasing radius

4. Static radius

The correct answer is: Decreasing radius

The type of cornering that is more challenging due to its reducing radius is decreasing radius cornering. As a driver navigates a decreasing radius turn, the angle of the turn tightens as they progress through it. This requires precise vehicle control and the ability to adapt quickly, as the driver must continuously adjust their steering input and speed to maintain traction and navigate effectively. In this scenario, the driver may experience increased centrifugal force, which can lead to a loss of control if not managed properly. Additionally, the need for earlier braking and sharper steering can catch inexperienced drivers off guard, making this cornering type particularly demanding. In contrast, constant radius cornering maintains the same curvature throughout, allowing for a more consistent driving strategy. Increasing radius cornering allows for a gentler transition, requiring less adjustment as the turn opens up. Static radius, while not a commonly used term, implies a corner that does not change, akin to constant radius but lacks the wider context often considered with cornering dynamics. These characteristics make decreasing radius cornering significantly more complex and challenging for drivers to navigate efficiently.