Massachusetts Registry Of Motor Vehicles (RMV) Practice Test

When you see a broken yellow line on your side of a solid yellow center line, it indicates that you are allowed to cross the line to pass other vehicles when it is safe to do so. The broken line signifies that passing is permissible for traffic traveling in your direction, as long as you can do so without endangering yourself or others. This traffic control marking is designed to help maintain a flow of traffic while providing flexibility for drivers to safely maneuver. In contrast, the solid yellow line indicates that passing is not allowed from the opposite side, which could include oncoming traffic. Therefore, the presence of the broken line provides you with the opportunity to safely overtake slower vehicles when conditions are favorable, while the constant reminder of the solid line reinforces the need for caution.