Cambodia is a country in mainland Southeast Asia. It borders Thailand, Laos, Vietnam, the Gulf of Thailand and covers a total area of approximately 181,035 km2 (69,898 sq mi). The country is situated in its entirety inside the tropical Indomalayan realm and the Indochina Time zone (ICT).
The system of transport in Cambodia, rudimentary at the best of times, was severely damaged in the chaos that engulfed the nation in the latter half of the 20th century. The country's weak transport infrastructure hindered emergency relief efforts, exacerbating the logistical issues of procurement of supplies in general and their distribution. Cambodia received Soviet technical assistance and equipment to support the maintenance of the transportation network.
This article concerns the systems of transportation in Laos. Laos is a country in Asia, which possesses a number of modern transportation systems, including several highways and a number of airports. As a landlocked country, Laos possesses no ports or harbours on the sea, and the difficulty of navigation on the Mekong means that this is also not a significant transport route.
The Mekong or Mekong River is a trans-boundary river in East Asia and Southeast Asia. It is the world's twelfth-longest river and the third-longest in Asia with an estimated length of 4,909 km (3,050 mi) and a drainage area of 795,000 km2 (307,000 sq mi), discharging 475 km3 (114 cu mi) of water annually. From its headwaters in the Tibetan Plateau, the river runs through Southwest China, Myanmar, Laos, Thailand, Cambodia, and southern Vietnam. The extreme seasonal variations in flow and the presence of rapids and waterfalls in the Mekong make navigation difficult. Even so, the river is a major trade route between Tibet and Southeast Asia. The construction of hydroelectric dams along the Mekong in the 2000s through the 2020s has caused serious problems for the river's ecosystem, including the exacerbation of drought.
Stung Treng is a province of Cambodia in the northeast. It borders the provinces of Ratanakiri to the east, Mondulkiri and Kratié to the south and Kampong Thom and Preah Vihear to the west. Its northern boundary is Cambodia's international border with Laos. The Mekong River bisects the province. The province is mostly covered by forest, but logging and fishing put high pressure on the forest and fishery reserves.
Kratié, alternatively spelled Kracheh, is a province of Cambodia located in the northeast. It borders Stung Treng to the north, Mondulkiri to the east, Kampong Thom and Kampong Cham to the west, and Tboung Khmum, and the country of Vietnam to the south.
The largest of the ethnic groups in Cambodia are the Khmer, who comprise 95.8% of the total population and primarily inhabit the lowland Mekong subregion and the central plains. The Khmer historically have lived near the lower Mekong River in a contiguous arc that runs from the southern Khorat Plateau where modern-day Thailand, Laos and Cambodia meet in the northeast, stretching southwest through the lands surrounding Tonle Sap lake to the Cardamom Mountains, then continues back southeast to the mouth of the Mekong River in southeastern Vietnam.
Stung Treng City is the capital of Stung Treng Province, Cambodia. It is the major city of both the district and province.
The Srepok River is a major tributary of the Mekong River. It runs from Đắk Lắk Province in the Central Highlands of Vietnam through the Ratanakiri and Stung Treng provinces in Cambodia to join the Mekong near Stung Treng town. Its length is 405 km in which the last 281 km course is in Cambodian territory. The Srepok River, in turn, has contained two main tributaries, the Krông Nô and Krông Ana streams. In Vietnam, it is also called the Daăk Krông what mean "the big river".
Natural resources are materials that occur in a natural form within environments. These can be classified as either biotic or abiotic on the basis of their origin. The landmass and the territorial waters of Cambodia contain a rather moderate amount, array and variety of resources. Apart from water, abiotic resources, such as minerals are generally rare. Still, advanced geo-scientific technologies have produced remarkable results and re-assessments in recent years, such as the localization of offshore oil and gas depots in the Gulf of Thailand. Cambodia, on the other hand possesses a relatively wide range of biotic resources, in particular timber, forest products, rare plants and a fauna of great diversity.
Asian Highway 3 (AH3) is a route of the Asian Highway Network which runs 7,331 km (4,555 mi) from Ulan-Ude, Russia to Tanggu, China; and Shanghai, China to Chiang Rai, Thailand and Kengtung, Myanmar.
Cambodia has 612 km (380 mi) of 1,000 mm metre gauge rail network, consisting of two lines: one from the capital, Phnom Penh, to Sihanoukville, and another from Phnom Penh to Poipet, on the Thai border. The lines were originally constructed during the time when the country was part of French Indochina, but due to neglect and damage from civil war during the latter half of the 20th century, the railways were in a dilapidated state, and all services had been suspended by 2009. Through rehabilitation efforts by the government of Cambodia, with funding from the Asian Development Bank, Australian Agency for International Development (AusAID), and the Australian company Toll Holdings, freight and limited passenger service returned between Phnom Penh and Sihanoukville by 2016, and passenger service between Phnom Penh and Poipet was fully restored in 2019.
The Sambor Dam is a proposed dam and hydroelectric power station on the Mekong River south of Sambor village in Prek Kampi District, Kratie Province, Cambodia. If built, it would be the lowest dam of the Mekong's mainstream dams, and largest in Cambodia.
The Lower Se San 2 Dam is a hydroelectric dam under development on the Se San River in Stung Treng Province, northeastern Cambodia. The Se San River is a major tributary of the Mekong River. The dam site is located 25 kilometres (16 mi) east of the provincial capital, also named Stung Treng. The first turbine began producing electricity in November 2017. The dam was officially opened on December 18, 2018.
The Lower Se San/Sre Pok 2 scheme is a proposed hydroelectric dam to be located in Stung Treng Province, Cambodia on the Tonle Sre Pok some 2 kilometres (1.2 mi) upstream of its confluence with the Se San, and about 37 kilometres (23 mi) upstream of the confluence of the combined Sre Pok, Se San and Se Kong rivers with the Mekong mainstream.
The Stung Treng Dam is a proposed hydroelectric dam on the Mekong River in Stung Treng Province, Cambodia. It would be located on the mainstream of the Lower Mekong River. The project is controversial for several reasons, including its possible impact on the fisheries, as well as other ecological and environmental factors.
Tsubasa Bridge, also known as Neak Loeung Bridge (ស្ពានអ្នកលឿង), links Kandal Province with the town of Neak Loeung, Prey Veng Province in Cambodia, on the heavily travelled Highway 1 between Phnom Penh, and Ho Chi Minh City in Vietnam.
The Sekong Bridge is a bridge on the Sekong River near the town of Stung Treng that was opened in 2008. Construction of the bridge was funded by an interest-free loan from the Chinese Government.
