Turnpike trusts were bodies set up by individual acts of Parliament, with powers to collect road tolls for maintaining the principal roads in Britain from the 17th but especially during the 18th and 19th centuries. At the peak, in the 1830s, over 1,000 trusts administered around of turnpike road in England and Wales, taking tolls at almost 8,000 toll-gates and side-bars. During the early 19th century the concept of the turnpike trust was adopted and adapted to manage roads within the British Empire (Ireland, Canada, Australia, New Zealand, India, and South Africa) and in the United States. Turnpikes declined with the coming of the railways and then the Local Government Act 1888 gave responsibility for maintaining main roads to county councils and county borough councils. Etymology The term "turnpike" originates from the similarity of the gate used to control access to the road, to the barriers once used to defend against attack by cavalry (see Cheval de frise). The turnpike consisted of a row of pikes or bars, each sharpened at one end, and attached to horizontal members which were secured at one end to an upright pole or axle, which could be rotated to open or close the gate. Precursors to turnpike trusts Pavage grants, originally made for paving the marketplace or streets of towns, began also to be used for maintaining some roads between towns in the 14th century. These grants were made by letters patent, almost invariably for a limited term, presumably the time likely to be required to pay for the required works. Tudor statutes had placed responsibility on each parish vestry to maintain all its roads. This arrangement was adequate for roads that the parishioners used themselves but proved unsatisfactory for the principal highways that were used by long-distance travellers and waggoners. During the 17th century, the piecemeal approach to road maintenance caused acute problems on the main routes into London. As trade increased, the growing numbers of heavy carts and carriages led to serious deterioration in the state of these roads and this could not be remedied by the use of parish statute labour. A parliamentary bill was tabled in 1621/22 to relieve the parishes responsible for part of the Great North Road by imposing a scale of tolls on various sorts of traffic. The toll revenue was to be used in repairing the road, however, the bill was defeated. During the following forty