What kind of emergency lighting is typically required along exit routes?

Fixed emergency lighting is required along exit routes to ensure visibility and safe egress during an emergency, such as a power outage or fire situation. This type of lighting is designed to remain in place and provide illumination consistently, guiding occupants safely to exits.

Fixed emergency lighting systems are typically integrated into the building's infrastructure, ensuring they are unobtrusive yet reliable. They are powered by batteries or a standby power supply, allowing them to function when the main power supply is interrupted. This reliability is crucial, as it prevents confusion and helps occupants navigate towards safety in stressful situations.

The other options, while they can provide illumination, do not meet the specific requirements set by fire safety regulations for structured emergency egress scenarios. Battery-powered flashlights and portable emergency lighting can be useful in certain situations, but they rely on individuals to find and use them, which can lead to inconsistencies during an emergency. Solar-powered lighting also may not provide adequate illumination during times of emergency, especially at night or during extended power outages. Thus, fixed emergency lighting is the most suitable choice for ensuring continuous and effective emergency egress illumination.