A Practical Treatise on Roads, Streets, and PavementsVan Nostrand, 1876 - 258 pages |
From inside the book
Results 1-5 of 28
Page 15
... miles , while if one straight road be built from A to B , and another from B to C , the total carriage will be equivalent to convey- ing 1 ton only 5060 miles . The difference , ( equal to 540 tons carried 1 mile ) in favor of the lines ...
... miles , while if one straight road be built from A to B , and another from B to C , the total carriage will be equivalent to convey- ing 1 ton only 5060 miles . The difference , ( equal to 540 tons carried 1 mile ) in favor of the lines ...
Page 16
... miles ( 140—1261 ) than a continuous line A B C passing through the intermediate town , the ex- pediency of building and maintaining upwards of 10 per cent more road than is absolutely necessary to connect the three towns , presents ...
... miles ( 140—1261 ) than a continuous line A B C passing through the intermediate town , the ex- pediency of building and maintaining upwards of 10 per cent more road than is absolutely necessary to connect the three towns , presents ...
Page 21
... Macadamized roads . When the speed ex- ceeds 2 miles per hour the increase in the resistance varies directly with the increase in velocity . Some of M. Morin's results are tabulated below . RELATION GRADES AND TRACTIVE FORCE . 21.
... Macadamized roads . When the speed ex- ceeds 2 miles per hour the increase in the resistance varies directly with the increase in velocity . Some of M. Morin's results are tabulated below . RELATION GRADES AND TRACTIVE FORCE . 21.
Page 26
... mile , and the French Corps of Ponts et Chaussees recommend , or about 42 feet to the mile . Maximum and Minimum Grades . As a rule therefore the 26 ROADS , STREETS , AND PAVEMENTS .
... mile , and the French Corps of Ponts et Chaussees recommend , or about 42 feet to the mile . Maximum and Minimum Grades . As a rule therefore the 26 ROADS , STREETS , AND PAVEMENTS .
Page 30
... Miles . Miles . 1 in 260 0 13 13 315 212 1.196 .8039 lbs . lbs . Miles . Miles . 387 336 1.071 .9286 " 250 0 13 45 317 210 1.204 .7963 388 335 1.074 .9259 " 240 0 14 19 320 208 1.212 .7876 390 334 1.077 .9226 " 230 0 14 57 322 205 1.222 ...
... Miles . Miles . 1 in 260 0 13 13 315 212 1.196 .8039 lbs . lbs . Miles . Miles . 387 336 1.071 .9286 " 250 0 13 45 317 210 1.204 .7963 388 335 1.074 .9259 " 240 0 14 19 320 208 1.212 .7876 390 334 1.077 .9226 " 230 0 14 57 322 205 1.222 ...
Other editions - View all
PRAC TREATISE ON ROADS STREETS Quincy Adams 1825-1888 Gillmore,Making of America Project No preview available - 2016 |
Common terms and phrases
angle angle of repose asphalt pavement asphaltum Basalt bituminous blocks bottom bricks Broken stone road carriage catchwater drains cent centre clean coal tar cobble stones compacted constructed cost cross drains cubic yards depth drainage dust earth edge embankment Equivalent length excavated feet filled Fireless Locomotive Force required grade gravel hard heavy horses inches in thickness inches thick inclination joints kind laid length of level less level road lime limestone load longitudinal Macadam Macadamized road maintenance mastic material method miles MILES PER HOUR mixture mortar necessary ordinary paved placed Portland cement pounds rails rammer ramming repairs required to draw road bed road covering road surface road-covering roadway roller Rosendale rubble ruts Seyssel shown in Fig side ditches side gutters slope soil square street pavements stringers sub-pavement suitable tion tons top layer traffic transverse Val de Travers vehicles wagon wear weight wheels width wood
Popular passages
Page 97 - All the irregularities of the upper part of the said pavement are to be broken off by the hammer, and all the interstices to be filled with stone chips, firmly wedged or packed by hand with a light hammer, so that when the whole pavement is finished, there shall be a convexity of four inches in the breadth of fifteen feet from the centre.
Page 97 - The middle 18 feet of pavement is to be coated with hard stones to the depth of 6 inches. Four of these 6 iuches to be first put on and worked in by carriages and horses, care being taken to rake in the ruts until the surface becomes firm and consolidated, after which the remaining 2 inches are to be put on.
Page 97 - The paved spaces, on each side of the eighteen middle feet, are to be coated with broken stones, or well cleansed, strong gravel, up to the footpath or other boundary of the road, so as to make the whole convexity of the road six inches from the centre to the sides of it. The whole of the materials are to be covered with a binding of an inch...
Page 13 - To give the center line such a position, with reference to the natural surface of the ground, that the cost of construction shall be reduced to the smallest possible amount.
Page 89 - ... feet. No amount of rolling was sufficient to produce a thorough binding effect upon the stones, or to cause such a mechanical union and adjustment of their sides and angles together as to enable them mutually to assist each other in resisting displacement. The rolling was persisted in, with the roller adjusted to different weights up to the maximum load," (12 tons) " until it was apparent that the opposite effect from that intended was being produced. The stones became rounded by the excessive...
Page 48 - On rock slopes when the inclination of the natural surface is not greater than one perpendicular to two base, the road may be constructed partly in excavation and partly in embankment in the usual manner, or by cutting the face of the slope into horizontal steps with vertical faces, and building up the embankment in the form of a solid stone wall in horizontal courses, laid either dry or in mortar. Care is required in proportioning the steps, as all attempts to lessen the quantity of excavation by...
Page 205 - Fatal epidemics at sea have been traced to timber that has become saturated with putrescent matter, or wet with bilge water. Prof. Fonssagrives, of France, says : " The hygienist cannot, moreover, look favorably upon a street covering consisting of a porous substance capable of absorbing organic matter, and by its own decomposition giving rise to noxious miasma, which, proceeding from so large a surface, cannot be regarded as insignificant. I am convinced that a city with a damp climate, paved entirely...
Page 96 - Upon the level bed prepared for the road materials, a bottom course, or layer of stones, is to be set by hand, in form of a close firm pavement ; the stones set in the middle of the road are to be...
Page 125 - If there be substance enough already in the road, and which, indeed, should always be carefully kept up, it will never be right to put on more than a stone's thickness at a time. A cubic yard nicely prepared and broken, as before described, to a rod superficial, will be quite enough for a coat, and if accurately noticed, will be found to last as long as double the quantity put on unprepared and in thick layers. There is no grinding to pieces when so applied ; the angles are preserved, and the material...
Page 127 - Berthault Ducreux introduced a system of patching instead of general repairs, since when, the road was gradually improved, till it was in a very good state, and the annual expense reduced,by £13 or £14 per mile