National System of Highways And Landscape Designing Address Delivered Before Th
National System of Highways And Landscape Designing Address Delivered Before Th
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In our eReader you can find the full English version of the book. Read National System of Highways And Landscape Designing Address Delivered Before Th Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book National System of Highways And Landscape Designing Address Delivered Before Th
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To quickly assess the difficulty of the text, read a short excerpt:
" It will be so by contra. St, for 6 NATIONAL SYSTEM OF HIGHWAYS AND LANDSCAPE DESIGNING.
there are still many highway builders who regard 5 and 6 per cent as ordinary grades, and 7, 8, 9, and 10 per cent as permissible. But 2| per cent is, in fact, not a low grade. In railroad work 2^ per cent is now excessive and impossible for trunk lines. It is only per- missible in branches. In the earlier days of railroading, grades of 2, 3, and 4 per cent were thought permissible on trunlv lines. But now... it is considered almost imperative to keep within 1 per cent and very desirable to keep within one-half of 1 per cent. Of course. It is phj^sically possible to operate trains over steeper grades, but the managements of railways endeavor to operate on business lines, and they have found that steep grades make operation expensive. There is economy in operating trains over low grades. This is a matter of dollars and cents, or, we may say, hundreds of thousands and millions of dollars. It is economy to have one crew and its one engine haul the largest possible tonnage in a train, or to make the steam from a ton of coal haul the largest possible number of tons.
What to read after National System of Highways And Landscape Designing Address Delivered Before Th?
You can find similar books in the "Read Also" column, or choose other free books by Cyrus Kehr to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
" It will be so by contra. St, for 6 NATIONAL SYSTEM OF HIGHWAYS AND LANDSCAPE DESIGNING.
there are still many highway builders who regard 5 and 6 per cent as ordinary grades, and 7, 8, 9, and 10 per cent as permissible. But 2| per cent is, in fact, not a low grade. In railroad work 2^ per cent is now excessive and impossible for trunk lines. It is only per- missible in branches. In the earlier days of railroading, grades of 2, 3, and 4 per cent were thought permissible on trunlv lines. But now... it is considered almost imperative to keep within 1 per cent and very desirable to keep within one-half of 1 per cent. Of course. It is phj^sically possible to operate trains over steeper grades, but the managements of railways endeavor to operate on business lines, and they have found that steep grades make operation expensive. There is economy in operating trains over low grades. This is a matter of dollars and cents, or, we may say, hundreds of thousands and millions of dollars. It is economy to have one crew and its one engine haul the largest possible tonnage in a train, or to make the steam from a ton of coal haul the largest possible number of tons.
What to read after National System of Highways And Landscape Designing Address Delivered Before Th?
You can find similar books in the "Read Also" column, or choose other free books by Cyrus Kehr to read onlineMoreLess
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