Which aspect should a site plan show concerning flame effects?

A site plan concerning flame effects is essential for safety and logistical considerations in a performance environment. The correct answer involves the location of the flame effect devices because clearly marking these locations on a site plan helps ensure that all safety protocols are followed. It allows for proper planning regarding audience positioning, device operation, and emergency evacuation routes.

Understanding the spatial arrangement of the flame effect devices in relation to the audience and other elements is critical to minimize risk and facilitate effective response measures in the event of an emergency. This detailed information is also vital for compliance with the NFPA 160 Standard, as it lays out clear guidelines on safe operation around flammable materials and equipment.

Other options, while potentially relevant to the broader context of a production, do not directly pertain to the crucial aspect of managing flame effects safely. The history of previous performances, audience demographics, and the materials' cost may offer insights into production planning and marketing strategies but do not specifically address the immediate concerns related to flame effects and audience safety in the same way that knowing their precise locations does.