Final answer:
Expressways merging from the left present unique challenges due to unexpected merging patterns and the high speeds of traffic in the left lane, which can result in dangerous situations and potential accidents.
Step-by-step explanation:
Expressways that come in from the left present special problems for several reasons. The most significant issue is that drivers typically expect traffic to merge from the right, so an entrance from the left is counterintuitive and can catch drivers by surprise. This can lead to more dangerous merging situations and increased likelihood of accidents. Additionally, drivers in the left lane are often traveling at high speeds, and a vehicle entering from a left-hand expressway entrance must quickly accelerate to match this speed, which can be challenging and may cause delays or accidents if not done correctly.
Expressways that come in from the left present special problems for several reasons. First, when a vehicle enters the expressway from the left, it merges with the flow of traffic traveling at high speeds. This can be challenging for the driver, as they need to quickly accelerate and adjust their speed to match the traffic flow. Second, vehicles entering from the left often need to cross multiple lanes to reach their desired lane, which requires careful maneuvering and consideration of the surrounding traffic. Lastly, drivers on the expressway may not expect vehicles entering from the left, as their attention is primarily focused on the lanes to their right.