Infrastructure is the set of facilities and systems that serve a country, city, or other area, and encompasses the services and facilities necessary for its economy, households and firms to function. Infrastructure is composed of public and private physical structures such as roads, railways, bridges, airports, public transit systems, tunnels, water supply, sewers, electrical grids, and telecommunications. In general, infrastructure has been defined as "the physical components of interrelated systems providing commodities and services essential to enable, sustain, or enhance societal living conditions" and maintain the surrounding environment.
The national highways in India are a network of limited access roads owned by the Ministry of Road Transport and Highways. National highways have flyover access or some controlled-access, where entrance and exit is through the side of the flyover. At each highway intersection, flyovers are provided to bypass the traffic on the city, town, or village. These highways are designed for speeds of 100 km/h. Some national highways have interchanges in between, but do not have total controlled-access throughout the highways. The highways are constructed and managed by the Central Public Works Department (CPWD), the National Highways and Infrastructure Development Corporation Limited (NHIDCL), and the public works departments (PWD) of state governments. Currently, the longest national highway in India is National Highway 44 at 4,112 km. India started four laning of major national highways with the National Highway Development Project (NHDP). As of March 2022 India has approximately 35,000 km of four laned National highways.
Roads in India are an important mode of transport in India. India has a network of over 6,331,791 kilometres (3,934,393 mi) of roads. It is the second-largest road network in the world, after the United States. At of roads per square kilometre of land, the quantitative density of India's road network is equal to that of Hong Kong, and substantially higher than the United States, China, Brazil and Russia. Adjusted for its large population, India has approximately 5.13 kilometres (3.19 mi) of roads per 1,000 people, which is much lower than United States 20.5 kilometres (12.7 mi) but higher than that of China 3.6 kilometres (2.2 mi). India's road network carries over 71% of its freight and about 85% of passenger traffic.
The Department of Public Works and Highways, abbreviated as DPWH, is the executive department of the Philippine government solely vested with the Mandate to “be the State's engineering and construction arm” and, as such, it is “tasked to carry out the policy” of the State to “maintain an engineering and construction arm and continuously develop its technology, for the purposes of ensuring the safety of all infrastructure facilities and securing for all public works and highways the highest efficiency and the most appropriate quality in construction” and shall be responsible for “(t)he planning, design, construction and maintenance of infrastructure facilities, especially national highways, flood control and water resources development systems, and other public works in accordance with national development objectives,” provided that, the exercise of which “shall be decentralized to the fullest extent feasible.”
The New Zealand Ministry of Works and Development, formerly the Department of Public Works and often referred to as the Public Works Department or PWD, was founded in 1871 and disestablished and sold off in 1988. The Ministry had its own Cabinet-level responsible minister, the Minister of Works or Minister of Public Works.
The Public Works Department (PWD) was the State Government Agency of Western Australia, which was charged with providing and maintaining public infrastructure such as dams, water supplies, schools, hospitals, harbours and other public buildings. The department is no longer operational, having its responsibilities reassigned to other State Government Departments and corporate entities since 1985.
The Idaho Transportation Department (ITD) is the state of Idaho governmental organization responsible for state transportation infrastructure. This includes ongoing operations and maintenance as well as planning for future needs of the state and its citizens. The agency is responsible for overseeing the disbursement of federal, state, and grant funding for transportation programs in the state.
Kerala, a state in Southern India, has a network of 11 National Highways, 72 State Highways and many district roads.
The Public Works Department (PWD), natively known as Jabatan Kerja Raya, is a government department under the Ministry of Development (MoD) responsible for the development and maintenance of infrastructures in Brunei.
Netivei Israel, formerly the National Roads Company of Israel, also called National Roads Authority, is a government-owned corporation, in charge of planning, construction and maintenance of most road infrastructure in Israel, including roads, bridges and interchanges.
The Ministry of Road Transport and Highways (MoRTH) is a ministry of the Government of India, that is the apex body for formulation and administration of the rules, regulations and laws relating to road transport, transport research and in also to increase the mobility and efficiency of the road transport system in India. Through its officers of Central Engineering Services (Roads) cadre it is responsible for the development of National Highways of the country.
The Central Public Works Department is a department under the Ministry of Housing and Urban Affairs of India and is in charge of public sector works. It serves as the builder, developer and manager of Central government properties. With time, its area of operations has also expanded to roadways and Bridge engineering.
The Malaysian Public Works Department (Malay: Jabatan Kerja Raya Malaysia (JKR); Jawi: جابتن كرجا راي مليسيا) is the federal government department in Malaysia under Ministry of Works Malaysia (MOW) which is responsible for construction and maintenance of public infrastructure in West Malaysia and Labuan. In Sabah and Sarawak, a separate entity of Public Works Department exists under the two respective states government jurisdiction but both departments are also subordinate to the parent department at the same time.
Kerala Public Works Department (KPWD) is a department under the government of the state of Kerala, India. It manages the construction and maintenance of civil structures owned by the government viz; government buildings, government owned hospitals, roads, bridges etc. The KPWD was formed in 1956 following reorganization of states.
Department of Public Works popularly known as PWD is one of the departments under the control of Government of West Bengal. Under PWD, the Public Works and Public Works (Roads) Directorates are presently charged with the planning, survey, design, construction and maintenance of Roads, Bridges and Buildings throughout the state as well as having various responsibilities for emergency and relief activities. The current head of the ministry is Pulak Roy.
Manitoba Transportation and Infrastructure is the provincial government department responsible for managing infrastructure in Manitoba. It is in charge of "the development of transportation policy and legislation, and [of] the management of the province’s vast infrastructure network."
The Military Engineer Services (MES) is an inter-service organisation with military and civilian components of its officers and subordinate staff. MES is one of the oldest and largest government defence infrastructure-development agencies in India. Construction work is done with contracts, but maintenance is conducted by departmentally-employed labour (DEL) and contracts. MES is primarily employed in engineering and construction for the Indian Armed Forces, including the Army, Navy, Air Force, the Ordnance Factory Board, and the DRDO. It is also involved in complex projects, including hospitals, airfields, buildings, workshops, roads, runways, hangars, dockyards, airport terminals, sewage treatment plants, solar plants wharves, and other marine structures. MES has been entrusted with the construction of the Indian National War Memorial.
India–China Border Roads is a Government of India project for developing infrastructure along the Sino-Indian border by constructing strategic roads, including bridges and tunnels. The ICBR project is largely in response to Chinese infrastructure development along the borderlands with India. Several entities are responsible for constructing ICBR, including Border Roads Organisation (BRO) which handles the bulk of the ICBR road construction work, National Highways Authority of India (NHAI), National Highways and Infrastructure Development Corporation Limited (NHIDCL), Ministry of Development of North Eastern Region (MoDNER), Central Public Works Department (CPWD), public works departments of respective states and others. At least 67 per cent of the road network assigned to BRO falls under ICBR.
The National Highways & Infrastructure Development Corporation Limited (NHIDCL) is a fully owned company of the Government of India, set up in 2014 and is responsible for management of a network of over 10,000 km of National Highways out of 1,15,000 km in India. It is a nodal agency of the Ministry of Road Transport and Highways (MoRTH).
