. Electric railway journal . raliassemi-suburban electric railways. Melbourne, withits suburbs, has a population of roughly 600,000people, but there is no central municipal control,since it is cut up into several small cities, towns andboroughs, and each of these has its municipal affairscontrolled by its own elected council. The system ofcontrol adopted for new projects has by an act ofParliament been constituted a tramways trust, whosemembers are elected by the municipalities tramways have been constructed and are beingoperated under these controls in the interests of theircons
. Electric railway journal . raliassemi-suburban electric railways. Melbourne, withits suburbs, has a population of roughly 600,000people, but there is no central municipal control,since it is cut up into several small cities, towns andboroughs, and each of these has its municipal affairscontrolled by its own elected council. The system ofcontrol adopted for new projects has by an act ofParliament been constituted a tramways trust, whosemembers are elected by the municipalities tramways have been constructed and are beingoperated under these controls in the interests of theirconstituent bodies. Thecapital for constructionwas obtained by loans ad-vanced on the securities ofthe various municipalitiesconcerned. The new tramway hasa total route of 7 miles, ofwhich 5 miles are double-track and 2 miles single-track, making 12 track-miles in all. The permanent wayconstruction has severalspecial features that areunusual in Australas-ian construction. Amongthese is the use of a sub-soil drain of agricultural. NEW MELBOURNE TRAMWAY—VIEW OF SUBSTATIONSWITCHBOARD tiles with frequent outfalls. This has been providedfor the full length of tracks. In addition, an of graded ballast has been used below the pavement of the roadway adjoining the rails agilsonite asphaltic-concrete surfacing has beenadopted, vitrified bricks being installed against the railsto prevent the asphalt surface from being broken downalong the line of contact between the rail metal and thepaving. The rails weigh 90 lb. to the yard, and they are Britishstandard, grooved-girder section on tangent track. Asimilar type of rail weighing 96 lb. to the yard is usedon all curves of less than 150 ft. radius. The rail heads are curved with a radiusof 12 in. The sharpestcurves on the system areof 50 ft. radius. Oncurves of 60 ft. radius orless the inside rail is fittedwith a removable, rolledmanganese-steel rails are made of sil-icon steel, under the Sand-berg patents. For t
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