Final answer:
A predictable traffic flow is a safety factor on an expressway, but you should always be alert for road construction, speed limits, weather conditions, and traffic signals. These factors can disrupt traffic flow and increase the risk of accidents.
Step-by-step explanation:
A predictable traffic flow is a safety factor on an expressway. However, you should always be alert for road construction, speed limits, weather conditions, and traffic signals.
While a predictable traffic flow is desirable for safety, there are certain factors that can disrupt it. One such factor is road construction, which can lead to lane closures, detours, and changes in traffic patterns. It is important to be aware of these changes and follow any traffic control measures in place.
Another factor to be alert for is speed limits. Speeding or driving too fast for the conditions can increase the risk of accidents. It is important to obey posted speed limits and adjust your speed based on weather and road conditions.
Weather conditions can also affect traffic flow. Heavy rain, snow, fog, or ice can make driving more challenging and increase the likelihood of accidents. It is important to adjust your driving behavior and allow for extra time and distance in adverse weather conditions.
Lastly, while expressways typically do not have traffic signals, it is important to be alert for any unexpected signals. In some cases, expressways may have traffic signals at interchange ramps or construction zones. It is important to pay attention to these signals and follow any instructions given.