A Treatise on Roads: Wherein the Principles on which Roads Should be Made are Explained and Illustrated, by the Plans, Specifications, and Contracts Made Use of by Thomas Telford, Esq. on the Holyhead RoadLongman, Orme, Brown, Green, and Longmans, 1838 - 465 páginas |
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Página 3
... less food will be consumed , and fewer servants wanted . The expense of travelling , and the charges for the carriage of goods , will be lower . A saving to the public , amounting in the aggregate to a con- siderable sum , will thus ...
... less food will be consumed , and fewer servants wanted . The expense of travelling , and the charges for the carriage of goods , will be lower . A saving to the public , amounting in the aggregate to a con- siderable sum , will thus ...
Página 21
... less than 452 Turnpike Acts were passed . Since that year a number of Turnpike Acts have continued to be passed , as will appear from the following table + : - ‡ : - In eight years , from 1785 to 1792 1792 to 1800 1800 to 1809 302 341 ...
... less than 452 Turnpike Acts were passed . Since that year a number of Turnpike Acts have continued to be passed , as will appear from the following table + : - ‡ : - In eight years , from 1785 to 1792 1792 to 1800 1800 to 1809 302 341 ...
Página 32
... less than seven distinct Trusts ; the revenue arising from the tolls being very limited , the trustees could not afford to employ persons whose education and previous pursuits qualified them to act as surveyors . The consequence was ...
... less than seven distinct Trusts ; the revenue arising from the tolls being very limited , the trustees could not afford to employ persons whose education and previous pursuits qualified them to act as surveyors . The consequence was ...
Página 38
... less perpendicular height , by winding the road over lower points of them ; but the propriety of doing so will depend upon the length by which a road will be increased by going round to avoid passing the ridges in the direct line . The ...
... less perpendicular height , by winding the road over lower points of them ; but the propriety of doing so will depend upon the length by which a road will be increased by going round to avoid passing the ridges in the direct line . The ...
Página 45
... less of tractive force down- ward . Now , acclivities which are less steep than the angle of repose give a compensation in descend- ing for the excessive tractive force they require in ascending ; that is the case with acclivities ...
... less of tractive force down- ward . Now , acclivities which are less steep than the angle of repose give a compensation in descend- ing for the excessive tractive force they require in ascending ; that is the case with acclivities ...
Índice
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295 | |
100 | |
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Términos y frases comunes
Allesley arch Archway Road axles bottom breadth brick bridge broken stones built carriage centre coach coating commissioners constructed contract contractor Coventry cross drains DAVIES GILBERT depôts depth draught dynamometer earth eighteen inches elasticity embankments engineer expense experiments feet wide fences foot footpath fore wheels formed foundation four inches friction gravel ground half hard Hartshill height hill hind wheels Holyhead Road horizontal horses improvement inches deep inches thick inches wide instrument John Kershaw John Macneill labour laid length line of road manner masonry ment miles mortar mound necessary nine inches paved pavement placed Plate VII proper quicksets rails rates of inclination repair road-making roadway ruts side channels side springs six inches slopes specification spirit level springs square streets surface surveyor Telford theodolite Thomas Baylis three feet three inches trustees turnpike roads turnpike trusts upper velocity waggon whole wing walls
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Página 20 - They will here meet with rutts which I actually measured four feet deep, and floating with mud only from a wet summer; what therefore must it be after a winter?