Parking meters are devices used to collect fees from drivers who park their vehicles in designated areas. They are typically found on city streets and in parking lots, helping to manage parking space availability and encourage turnover. Users pay for parking by inserting coins, using credit cards, or through mobile apps, depending on the meter's technology. These meters are often monitored by local authorities to ensure compliance with parking regulations. The revenue generated from parking meters is usually allocated to city services, such as road maintenance and public transportation, contributing to the overall infrastructure of urban areas.