How are fixed productions typically characterized?

Fixed productions are characterized by being performed at a single site repeatedly. This means that they are typically scheduled events such as theme park shows, concert venues, or theatrical performances where the fireworks or special effects are consistently executed in the same location. This setup allows for a familiar environment, where safety protocols can be thoroughly established and maintained over time.

In the context of fireworks special effects, having a fixed location means the operators can optimize safety measures, equipment placement, and audience engagement based on the specifics of the site, leading to a more controlled and effective production. Additionally, rehearsals and adjustments can be made more easily in a familiar setting, ensuring that performances meet safety standards and artistic goals.

While the other options present scenarios that may involve fireworks and special effects, they do not align with the defining characteristic of fixed productions, which emphasizes the repetition at a single site.