The noise level of a tram depends largely on its age, the condition of the tracks, and the environment. Modern electric trams are remarkably quiet, often producing only a gentle hum from the electric motor and a rhythmic "click-clack" as wheels pass over rail joints. In many "green" cities in 2026, trams are actually so quiet that they are fitted with a distinctive "ting-ting" bell to alert distracted pedestrians of their approach. However, older "vintage" streetcars can be quite noisy, featuring the loud whine of antiquated gears and the screech of metal-on-metal when navigating tight curves—a phenomenon known as "flange squeal." Compared to diesel buses or heavy trucks, trams are a significant improvement for urban acoustics because they lack internal combustion engine noise. In residential areas, the primary noise concern is often ground-borne vibration rather than airborne sound, which modern "floating slab" track technology has worked to minimize, making the tram a preferred, peaceful mode of high-capacity transit.