The city of Phnom Penh is served by multiple transport systems including public buses, private taxis and ride-hailing via mobile apps.

Line B serves the western side along Mao Tse Tung Boulevard, going much further south to Ta Khmao, capital of the Kandal Province near the Choeung Ek Genocidal Centre.

The only form of rail transport in Phnom Penh was the short-lived airport shuttle train operated by Royal Railway.

[2] In 2016, the Cambodian government announced that they were getting assistance from Japan International Cooperation Agency (JICA) to conduct a feasibility study on an AGT system in Phnom Penh.

[4] Separately, in 2019, the government has also awarded contracts to two Chinese firms to conduct feasibility studies on both a metro and a light rail system.