Buses play a major role in the public transport of Malaysia, as well as seeing extensive private use. While rail transport has increased over the recent years due to road congestion, the same does not apply to buses, which have generally been used less in most of the area. History Regulation Today, bus service provision for public transport in Malaysia is regulated by the Land Public Transport Agency (APAD). Types in use In Malaysia, the most common types of buses used are single-decker buses, double-decker buses, and midi buses. Single-decker buses, also known as city buses, are designed to operate within urban areas and are mostly used for short to medium-length journeys. Double-decker buses, on the other hand, are mainly used for longer journeys, such as intercity travel, and offer greater capacity with their upper decks. Midi buses, which are smaller than full-sized buses but larger than mini buses, are also commonly used in Malaysia. They are ideal for routes with lower passenger demand and narrow roads. In recent years, there has been a growing interest in eco-friendly public transportation, and Malaysia has been introducing electric buses and hybrid buses as well. As of 2021, the Malaysian government plans to launch a pilot program to introduce hydrogen fuel cell buses in Kuching, Sarawak. These buses produce zero-emission and are expected to improve air quality in urban areas. Services Aside from normal urban and inter-urban services, bus transport in Malaysia also has a number of niche uses: Express services Shuttle bus services, including airport bus (KLIA), university shuttles (UM, UPM and UKM), rail replacement bus service for Kelana Jaya Line and currently Ampang Line Employee bus services, which mostly painted in blue colour School bus services, which mostly painted in yellow colour Hail and Ride services Demand responsive transport (DRT) services such as Kumpool van pooling service Long-distance coach services Zero-fare services such as Go KL City Bus Bus rapid transit systems Bus Rapid Transit (BRT) is a high-capacity, high-frequency bus-based public transportation system that has gained popularity in many countries as a cost-effective alternative to traditional light rail systems. BRT systems typically have dedicated lanes, independent stations and high-capacity buses that provide a reliable and efficient service to commuters. In Malaysia, BRT has become an alternative to light rail proposals due to cost considerations. Currently, only one BRT system in Malaysia, which is the BRT Sunway Line, which serves as