Читать книгу Highways and Highway Transportation - George R. Chatburn - Страница 19
Railways Developed.
Оглавление—With power manufacturing and increased production due to the adoption of improved factory systems came still greater demand for transportation. Tramways had already been laid in 1676 for transporting coal from the mines to the sea. The rails were first made of scantling laid in the wheel ruts, then of straight rails of oak on which “one horse would draw from four or five chaldrons of coal.” Later (1765) cast-iron trammels 5 feet long by 4 inches wide were nailed to the wooden rails. These trammels collected dust, therefore in 1789 Jessop laid down at Loughborough cast-iron edge-rails and put a flanged wheel on the waggon. The rails were also placed on chairs and sleepers (ties), the first instance of this method. The distance apart of the rails was 4 feet 81⁄2 inches, what is now known as “standard gauge.” The success of these coal roads suggested tramways for freight and for passenger transportation between the larger towns. The canals had become congested with much traffic; it is said that notwithstanding there were three between Liverpool and Manchester the merchandise passing “did not average more than 1200 tons daily.” The average rate of carriage was 18s. ($4.37) per ton, and the average time of transit on the 50 miles of canal was thirty-six hours. The conveyance of passengers by the improved coach roads, was, for then, quite rapid but rather expensive.
Some experimental locomotives had been made and used in the mining regions. Their success led to the building of others. The Stockton and Darlington Railway opened in September, 1825, by a train of thirty-four vehicles, making a gross load of 90 tons, drawn by one engine driven by George Stephenson, with a signal man on horseback in advance. The train made at times as high as 15 miles per hour. The rail used weighed 28 pounds per yard. This road was intended entirely for freight but the demand of the people to ride was so pressing that a passenger coach to carry six inside and fifteen to twenty outside was put on to make the round trip in two hours at a fare of one shilling.
When the bill passed for the Liverpool and Manchester Railway in 1826 Stephenson was appointed engineer in charge at a salary of $5000 per year. This road made a great impression on the national mind, no little enhanced by the competition of locomotives at its completion in 1829, resulting in the victory of Stephenson’s engine the “Rocket.” It made the then astonishing speed of 35 miles per hour and proved conclusively the practicability of railway locomotion.
To follow the progress of industry during the nineteenth and twentieth centuries would require volumes. More has probably been accomplished, not without evils at times, than in the whole preceding history of the world. And as no small part of these accomplishments are the means and amount of travel and traffic and associated developments and organization made necessary by the vast industries which now supply the world’s wants, once more it may be asserted that the civilization of the world can be measured by its transportation.