What is a common feature included in modern synthetic vision systems?

Modern synthetic vision systems feature advanced technology that provides a three-dimensional representation of the surrounding terrain. This capability allows pilots to visualize the outside environment in conditions where visibility may be compromised, such as during low visibility or night flying. The 3D terrain mapping integrates information from various sources such as GPS, terrain databases, and aircraft sensors, creating an intuitive display. This helps in situational awareness, enabling pilots to identify potential obstacles and make informed navigational decisions.

While other options may offer useful functionalities in the cockpit, they do not typically characterize synthetic vision systems. For instance, live weather radar focuses on meteorological conditions without providing an enhanced view of terrain, and flight time estimators are tools for flight planning rather than real-time situational awareness. Pilot health monitoring, though beneficial for safety, is not a part of the synthetic vision feature set. Thus, the inclusion of 3D terrain mapping in modern synthetic vision systems distinguishes them as vital aids in aviation safety and efficiency.