Railways in Britain were nationalised under the terms of the Transport Act 1947 which came into effect on 1 January 1948. The Act created the British Transport Commission and the Railway Executive. The Act vested the business and assets of the then existing railway companies in the British Transport Commission. The Railway Executive, a corporate body subordinate to the British Transport Commission, was created to manage and operate the railways. It divided them into six geographical regions, largely based on the areas served by the pre-nationalisation railway companies, one of which was Western Region. It comprised the railway operations in England and Wales of the former Great Western Railway Company with adjustments to eliminate “penetrating lines”. From the former London Midland and Scottish Railway Western Region gained the lines in central and south Wales, the Birmingham-Bristol-Bath line, the Somerset and Dorset Joint line (in part) and from the Southern Railway the lines west of Exeter. It also was assigned Marylebone to Northolt. Sections of the former Great Western Railway lines to Weymouth, the Midland & South West Junction, the Didcot Newbury & Southampton, and Reading – Basingstoke and Westbury – Salisbury were assigned to the new Southern Region. Subsequently Marylebone was transferred out of Western Region. Western Region served the south-west of England, south and central Wales, and the West Midlands. Its principal routes were London Paddington to Bristol, via Reading, Didcot and Swindon, and London Paddington to Birmingham. In Bristol the line divided, one route continuing to the south-west serving Exeter and terminating in Penzance and the other into South Wales, via the Severn Tunnel to Cardiff, Swansea and Milford Haven. There was a more direct route to Exeter through Newbury, Westbury and Taunton. From Didcot a line ran north to Oxford and then divided, the southern route serving Worcester and Wolverhampton, by-passing Birmingham, and the northern route going to Birmingham via Banbury Leamington Spa and Warwick. Western Region also had several cross-country routes including Birmingham to Bristol, and many branch lines, with a dense network serving the valleys of south Wales. Throughout the time Western Region existed, loss-making and underused branch lines were closed, some as early as 1951. Of the cross-country lines, passenger services ceased on the former Midland & South Western Junction in 1961 and freight services were withdrawn between 1964 and 1970. Following the Beeching report in 1962 the Somerset and Dorset line closed in 1966 (with the exception of a short length serving Writhlington colliery in Somerset). The decline of the coal-mining industry in south Wales was followed by closures in the Valleys. Duplicate lines, such as the Honeybourne line from Cheltenham (closed in 1976), were also closed. Between 1948 and 1953 the regional manager was responsible to the Railway Executive for day to day operations in his region. After the Railway Executive was abolished in 1953, he reported to the British Transport Commission. In 1963, the British Transport Commission itself was abolished and replaced by British Railways Board. Between 1963 and 1968 Western Region was a statutory board in accordance with the provisions of the Transport Act 1962, subordinate to and reporting to British Railways Board. It ceased to be a statutory board in 1968, following reorganisation of the railways’ business along functional lines. The name survived until 1992 when the railways were privatised.

Railways in Britain were nationalised under the terms of the Transport Act 1947 which came into effect on 1 January 1948. The Railway Executive, a corporate body subordinate to the British Transport Commission, was created to manage and operate the railways. It divided them into six geographical regions, largely based on the areas served by the pre-nationalisation railway companies. London Midland Region (LMR) was one of those territories. It comprised the railway operations in England and Wales of the former London, Midland and Scottish Railway Company (LMS) with the exception of the London, Tilbury and Southend Railway which was placed in Eastern Region and lines in central and south Wales which passed to Western Region. Subsequently, the area of operations was adjusted by the transfer of “penetrating lines” between regions Between 1948 and 1952 the regional manager was responsible to the Railway Executive for day to day operations in his region. After the Railway Executive was abolished in 1952, he reported to the British Transport Commission (BTC). In 1963, BTC itself was abolished and replaced by British Railways Board (BRB). Between 1963 and 1968 LMR was a statutory board in accordance with the provisions of the Transport Act 1962, subordinate to and reporting to BRB. It ceased to be a statutory board in 1968, following reorganisation of the railways’ business along sectoral or functional lines. The name survived until 1992 when the railways were privatised. There were two principal routes in the region. The first was the former Midland mainline which had several components: London St Pancras to Sheffield via Leicester and Nottingham, Rugby through Derby to West Yorkshire and Leeds and continuing over the Settle-Carlisle route, Derby to Manchester, and Birmingham to Derby. The other was the West Coast Mainline (WCML) from Euston to Carlisle, via Birmingham and Manchester with its branch to Liverpool. There was one major “penetrating line”, the former Great Central London Extension from Annesley in Nottinghamshire to London Marylebone, via Leicester, and Rugby. Originally in Eastern Region, this line was transferred to London Midland Region in 1958. The WCML which formed part of the major route from London to Scotland was electrified in stages between 1959 and 1974. Only the southern end of the Midland Mainline from Bedford to London Moorgate was electrified during the period that London Midland Region existed. Like other regions London Midland experienced withdrawal of services and closures, especially following the Beeching report. The most notable casualty was the Great Central line, which, because it largely duplicated the Midland Main Line from Nottingham to London, was closed almost in its entirety. The line through the Derbyshire Dales between Matlock and Buxton was also closed thus severing the route from St Pancras to Manchester. Many branch lines and industrial lines were also closed

In 1890 the Department of Works and Railways was separated into the Department of Works and Buildings and the Western Australian Government Railways (WAGR). Its headquarters were located in Perth. The network had stations in Perth, Kelmscott, Cannington and Welshpool. These lines were primarily opened to service the wheatbelt – an area which reaches north from Perth to the Mid-West region, and east to the Goldfields-Esperance region. In 1914 the function of tramways was added and the Department's title changed to Western Australian Government Railways and Tramways. The Western Australian Government Railways, Tramways & Ferries was abolished in 1949 and its functions dispersed into two new bodies, Western Australian Government Railways (WAGR) and Western Australian Government Tramways & Ferries. In September 1975, the WAGR adopted the trading name Westrail and created a logo. However, the official name of the WAGR was not changed at this point. The name Westrail was created simply to improve the company’s image. The new company headquarters were the Westrail Centre in the Perth terminal. On 17 December 2000, the Western Australian Government Railways (WAGR) freight division was sold to the Australian Railway Group along with the Westrail name and logo. The WAGR continued to operate as the Western Australian Government Railways Commission, until it was absorbed by the Public Transport Authority in 2003.

The British Thomson-Houston Co. Ltd., (BTH) was created as a subsidiary of the General Electric Company, USA in 1896 to exploit the sale of products in the United Kingdom. BTH was a reconstruction of an existing firm, Laing, Wharton and Down (1886). The BTH manufacturing works were based at Rugby, Warwickshire and the company’s products included induction motors, alternators, switchgear, turbo-generators and turbines, as well as a large number of rotary converters and motor converters, primarily for chemical plants. During the First World War, BTH’s most significant contribution was the development of marine apparatus for the naval service. The 1920s saw a period of vast expansion for the company with new extensions built at many of its factories such as Willesden, Birmingham, Chesterfield and Lutterworth. BTH amalgamated with Metropolitan-Vickers Electrical Company Ltd to form Associated Electrical Industries (AEI) in 1928 although both companies retained their separate identities and continued to compete for the same contracts. BTH developed manufactured electric torpedoes and electrical components for aircraft engines, munitions, etc., during the Second World War and in 1935 independently of each other, BTH and Metropolitan-Vickers were the first two companies in the world to construct jet engines.