What is the main characteristic of a segmented roadway with fixed elements?

The main characteristic of a segmented roadway with fixed elements is that it may contain at-grade intersections. A segmented roadway typically features discrete sections or segments that are designed with specific elements fixed in place, which can include intersections at the same level as the roadway. These at-grade intersections create points where traffic can cross or enter the roadway, making it a common feature of urban roads or those in developed areas where connectivity to other roads is necessary.

In such roadways, the presence of at-grade intersections is crucial as it directly influences the traffic flow and safety. Many segmented roadways are designed with controlled access features, but incorporating at-grade intersections allows for additional access points that can serve local traffic needs.

High-speed travel without interruptions is more characteristic of limited-access highways or expressways, which do not have at-grade intersections. Operating without any speed limit is not a standard feature of any road system; speed limits are typically enforced based on safety considerations. Long-distance travel is possible on various types of roadways, but segmented roadways are more frequently associated with localized traffic due to their inherent design features, including at-grade intersections.