The Maintenance of Macadamised RoadsE. & F.N. Spon, 1879 - 172 páginas |
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advantage amount average binding material breadth broken stone cent centimetres cloth coating considerable consolidated road constant labourer county authority cross drains crown 8vo cube yards detritus diameter ditches drainage drains draught edition Engineers expenditure F. N. SPON Fcap feet figs fresh materials granite gravel greater hand scrapers hard heavy loads heavy traffic highway districts hollows Holyhead horses illustrations inch of width inches thick inches wide increased Inst large stones length of road less limestone macadamised macadamised roads machine main roads manual labour McAdam mile of road parish patches Ponts et Chaussées proportion quantity of materials raking removed repairs road maintenance road materials road-coating roadman roller rolling scraping side channels silicious sod bordering solid South Wales spread square yards Steam stone-breaking subsoil sufficient surveyor Telford tons traction engine turnpike roads turnpike trusts vehicles Waggon water-table weight wheels yards of materials yards per mile
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