Practice point: Crossing a double yellow line into the opposing traffic lane, in violation of Vehicle and Traffic Law § 1126(a), constitutes negligence as a matter of law, unless justified by an emergency situation not of the driver's own making.
Student note: A driver is not required to anticipate that a vehicle traveling in the opposite direction will cross over into oncoming traffic.
Case: Browne v. Logan Bus Co., Inc., NY Slip Op 09111 (2d Dep't December 27, 2017)
Here is the decision.