Highway and Roadside Improvement1934 - Roadside improvement - 146 pages |
From inside the book
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Page 6
... tangent is not in order when it re- quires excessive grades or grading which could have been avoided by a curve , and it is wrongly used if it requires the removal of a great many trees in its path even though it may fit the topography ...
... tangent is not in order when it re- quires excessive grades or grading which could have been avoided by a curve , and it is wrongly used if it requires the removal of a great many trees in its path even though it may fit the topography ...
Page 7
... tangents connected by curves . Actually in hilly country the length of road in curves is in excess of that in tangents , so that a highway is more nearly a series of curves connected by intervening tangents . Curves are spoken of as ...
... tangents connected by curves . Actually in hilly country the length of road in curves is in excess of that in tangents , so that a highway is more nearly a series of curves connected by intervening tangents . Curves are spoken of as ...
Page 9
... tangent . Although at one time much used , the reverse curve has been abandonned almost entirely by railroads except in switch yards or other close quarters . They consider them altogether too dan- gerous . Long trains were frequently ...
... tangent . Although at one time much used , the reverse curve has been abandonned almost entirely by railroads except in switch yards or other close quarters . They consider them altogether too dan- gerous . Long trains were frequently ...
Common terms and phrases
advertising align American Elm appear areas Avenue planting avoided bark basswood beech trees better billboards black locust branches bridge Button Bush cable cambium camps centerline Chapter considered conspicuous Creosote cross curve dioecious Elderberries Eridges evergreens fall color feet filled flowers foliage given Grade Separations grass gravel ground grow growth Herbacious Materials highway department hill tops honeylocust indication planting insects interest intersection landscape LANDSCAPE ARCHITECTURE leaves lights maintenance maple matter Michigan Minor roads moisture NATIONAL FORESTS natural object parkway pavement pests placed planes of distance poplar possible prevent pruned railroad removed road surface roadscape Roadside Planting routes sand cherries satisfactory scenic sections Section roads seed shade shrubs side slopes situation snow spray stations straight sugar maple sumacs superelevation tangent Telephone tion traffic transplanting treatment trunk line usually valley water level routes white poplar wide rights wires