Which of the following factors can affect the capacity of a route?

The capacity of a route, which refers to the maximum number of vehicles that can pass through a section of road in a given time frame, is influenced by multiple interconnected factors.

When considering the number of lanes, having more lanes typically allows for a higher volume of traffic, as more vehicles can occupy the roadway simultaneously. Each additional lane can distribute traffic more efficiently, reducing congestion during peak hours.

Traffic composition refers to the types of vehicles on the road, which can also impact capacity. For instance, large trucks take up more space and may travel slower than passenger vehicles, potentially reducing the overall flow of traffic. A mixture of light and heavy vehicles can create variations in speed and spacing, further complicating how effectively a route can handle volume.

Terrain and road gradient are essential aspects of road design that affect vehicle performance. For example, steep grades can slow down vehicles, especially larger ones, leading to bottlenecks. Additionally, road curvature can affect safe driving speeds, again influencing the overall capacity of the route.

Therefore, considering all these factors together, it becomes clear that they collectively determine how much traffic a route can handle efficiently. This is why stating that all of these factors can affect the capacity of a route is correct. Each plays a vital role