If you're preparing for the ICBC knowledge test, understanding lane-control signals is crucial for safe driving in BC. As you navigate the roads, you'll encounter various signals that dictate how you should use lanes, especially on congested highways and bridges. Lane-control signals are there to manage traffic flow, and ignoring them can lead to fines or even accidents. In BC, these signals are part of the standard Canadian signage, with specific interpretations under the BC Motor Vehicle Act. A yellow X above your lane indicates a change is imminent, and failing to move could have real consequences. This topic is not just theory; it's practical knowledge for when you're behind the wheel. Knowing what each signal means can help you avoid mistakes and keep traffic moving smoothly. With this in mind, let's tackle a common scenario you might encounter during both your learning phase and driving tests.