Final answer:
Driving too slowly on expressways disrupts traffic flow, potentially causing accidents and increased emissions. Maintaining speed consistent with the traffic flow ensures safer and more efficient travel for everyone involved.
Step-by-step explanation:
Driving too slowly on expressways can indeed pose a significant hazard, just as excessive speed can. The principle here involves the issue of relative speed; when the majority of traffic is operating at a consistent pace, a vehicle moving significantly slower than the average can disrupt the flow and cause other drivers to take sudden and potentially dangerous actions to avoid a collision. For instance, Peter's frustration with a driver adhering to the minimum speed limit in a 35 mph zone illustrates the challenges that can arise. Everyone on the expressway expects a certain flow of traffic, and drastic variations in speed can lead to unexpected maneuvers such as abrupt lane changes or hard braking, which in turn can cause accidents.
Another issue is that slow moving vehicles can cause congestion, leading to increased emissions and fuel consumption. This is especially problematic in urban areas, where traffic build-ups on expressways can also lead to increased pollution and carbon footprint, as seen in the example of Delhi's traffic congestion. Maintaining a speed that is consistent with the flow of traffic allows for a smoother, safer driving experience for all and helps to minimize environmental impact.