Complex sentence: These experiments attempted to create realistic scenario in which modern fire safety engineering tools of all natures could be put to a test, thus improving understanding of how emergencies of this nature can be handled in a most effective manner.
Split into simpler sentences: These experiments attempted to create realistic scenario in which modern fire safety engineering tools of all natures could be put to a test. Thus improving our understanding of how emergencies of this nature can be handled in a most effective manner.