What areas need sufficient artificial lighting to prevent accidents?

Sufficient artificial lighting is essential in various areas to ensure safety and prevent accidents. Specifically, entrances, hallways, stairways, and service units are critical locations where proper lighting is necessary. These areas often experience high traffic and are pivotal for navigation within a facility. Adequate lighting in these places enhances visibility, allowing individuals to detect obstacles, changes in elevation, and potential hazards, thereby significantly reducing the risk of falls and other accidents.

In contrast, areas like patient rooms, kitchens, laundries, and common areas, while they also require good lighting, do not encompass the full scope of critical safety zones highlighted in the correct answer. Entrances and hallways are points of arrival and transition, where the risk of accidents can be especially pronounced, reinforcing the need for comprehensive lighting standards in those spaces. Thus, emphasizing the importance of lighting in these specific areas provides a proactive approach to ensuring safety in a facility.