Complex sentence: The entire length of SR 930 is included as a part of the National Highway System (NHS), a network of highways that are identified as being most important for the economy, mobility and defense of the nation.
Split into simpler sentences: The entire length of SR 930 is included as a part of the National Highway System (NHS). The NHS is a network of highways that are identified as being most important for the economy, mobility and defense of the nation.