What's the use of street lamps for people?

Street lamps are lighting devices installed on roads or public spaces. They have the following main purposes:

1. Lighting: Street lamps can provide lighting at night or in dim weather, making it easier for people to see the road and surrounding environment clearly, which is beneficial to walking and driving. This can reduce the risk of accidents.

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2. Improve safety: Street lamps can help people see the surrounding environment better, reduce the probability of being convicted and improve safety.

3. Promote economic development: Good public lighting can attract more people and business activities, increase business opportunities and economic development, and improve the local quality of life.

4. Increase night activities: Street lamps allow people to go out for leisure activities at night, such as walking, running, cycling, night markets and so on.

Generally speaking, the function of street lamps is to provide lighting, ensure safety and benefit people's daily life and social development.