Final answer:
Operating during daylight hours with bus interior lights on is forbidden to avoid light pollution and its negative impacts on the environment and energy consumption.
Step-by-step explanation:
Operating during daylight hours with bus interior lights on is forbidden in order to avoid light pollution. Light pollution refers to the excessive or misdirected artificial light at night that can obstruct the view of the stars and disrupt the natural rhythms of plants and animals. It can also lead to unnecessary energy consumption and expenses. By turning off the interior lights during daylight hours, bus operators can help minimize light pollution and preserve the beauty of the night sky.