Bus lanes are designated roadways specifically reserved for buses and sometimes other forms of public transport. These lanes help improve the efficiency and speed of bus services by reducing delays caused by regular traffic. They are often marked with signs and painted lines to indicate their use. In many cities, bus lanes operate during peak hours when traffic is heaviest, allowing buses to bypass congestion. This not only benefits bus passengers but also encourages more people to use public transportation, which can lead to reduced traffic and lower emissions in urban areas.