Linear graph displaying noise decibel comparisons. An LRT vehicle is shown above the graph line. The line transitions from green (20 dBA) to brown (60 dBA) to red (120 dBA). Under the graph line, rustling leaves are shown as 20 dBA, the quack of a duck is shown at 60 dBA and a jet take-off is show at 120 dBA. The LRT vehicle is shown above the graph line at 60 dBA, pointing to the quack of a duck.