What action should you take if an oncoming vehicle crosses the centerline on a straight road?

If an oncoming vehicle crosses the centerline on a straight road, the best action to take is to slow down and keep to the right. This response is crucial for a few reasons.

First, by slowing down, you reduce the risk of a collision. It allows you to better assess the situation and gives the other driver a chance to re-correct their path, moving back into their lane. Keeping to the right maximizes the distance between your vehicle and the oncoming car that is in the wrong lane, providing a safe buffer zone.

Maintaining your speed could result in a head-on collision, especially if the oncoming driver does not regain control. Speeding up may also increase the likelihood of an accident, as it might impair your reaction time or limit your options to avoid the other vehicle. Turning on emergency lights is generally more appropriate for indicating a vehicle breakdown or alerting others to a hazard rather than directly addressing the immediate danger posed by another moving vehicle.

Overall, the recommended action ensures safety for both drivers and minimizes the chances of a serious accident.