What factor determines the size of the gap when turning at an intersection from a stop?

The speed of the cross traffic is the crucial factor in determining the size of the gap when turning at an intersection from a stop. When you are preparing to make a turn, understanding how fast the vehicles in the opposing lane are traveling helps you gauge how much time you have to safely complete your turn without interfering with their path.

If the cross traffic is moving quickly, you'll need a larger gap to safely turn without putting yourself or others at risk. Conversely, if the cross traffic is moving slowly, you may require a smaller gap to make your turn. Therefore, assessing the speed of vehicles is essential for safely navigating intersections and making informed driving decisions.

The other factors, such as the length of the intersection, the time of day, and the type of vehicle, do not directly dictate the size of the gap required for a safe turn. While these may influence aspects of your driving experience or visibility, they do not provide as critical a consideration as the speed of approaching traffic when evaluating safe turning maneuvers.