- Ensuring safety on the roads: Even at night, there are still some cars on the road, so sufficient lighting is necessary.
- Ensuring the safety of citizens: Some citizens may go out at night; if the street is dark, they cannot notice if there is any danger on their way.
- Providing light to workers: Some workers need to work at night, such as the patrol officers. They need light to finish their tasks.
More reading: How Much Do Street Lights Cost?