... THICKNESS FLEXIBLE CBR RATIOS SUBGRADE LOADS BEARING PROPERTIES SOILS COMPACTION DRAINAGE PAVEMENTS AGRICULTURE LIGHTING TRACK DUCTS PITS BIBLIOGRAPHY TESTS CALIFORNIA THE INSTITUTION OF CIVIL ENGINEERS. AIRPORTENGINEERINGDIVISION Tuesday. 2 April. 1946. .MEETING MALCOLM GORDON JOHN...

...R N PEGG © Thomas Telford and ICE 1944 THE POST OFFICE PLANNING CITIES PUBLIC UTILITIES PUBLIC UTILITIES FORECASTS METHODS INSTALLATION LAYING CABLES DUCTS SUBWAYS COSTS BIBLIOGRAPHY SUPPLY ELECTRICITY GAS WATER HYDRAULICS SUBWAYS NETWORKS VENTILATION FOOTWAYS...

... least difficulty in laying. He was not quite clear what the Author meantbythe open duct system. If that meant having joints on the duct lines he agreed that the sealed duct system was the better, but even then there should be ventila,- AND PUBLIC UTILITIES. 25 tion at the manholes. Even small joint...