Abstract: Portable sports training assembly frames and sports training assemblies and goals, and particularly arched portable traps and goals which can be erected easily, for example, via self-erecting components, are provided. Arched assemblies, traps and goals of the invention include highly visible, and removable, halo and apron components, and effectively trap or stop sports-playing objects such as golf balls, hockey pucks, lacrosse balls, softballs, baseballs, footballs and soccer balls. The invention relates also to frames which can be provided in easily erectable or self-erecting embodiments, and which are useful not only as sports training assemblies, traps or goals but also for displaying signage, and particularly for displaying temporary or emergency signage. Frames and netting elements of the invention can be provided in one or more high-visibility materials and colors.