. Electric railway journal . our consulting engineers appointed by thecommission. Mr. Parsons was the chief engineer of theRapid Transit Commission, and planned the construc-tion of the first subway. He and Mr. Deyo are con-sulting engineers for the Interborough Rapid TransitCompany, while Mr. Stillwell and Mr. Davies are con-sulting engineers for the Brooklyn Rapid TransitCompany. The electrification of a new tunnel, known as theOtira Tunnel, about midway in the length of the South-ern Alps in South Island, New Zealand, is being con-sidered. Suitable energy could be supplied by the con-struct
. Electric railway journal . our consulting engineers appointed by thecommission. Mr. Parsons was the chief engineer of theRapid Transit Commission, and planned the construc-tion of the first subway. He and Mr. Deyo are con-sulting engineers for the Interborough Rapid TransitCompany, while Mr. Stillwell and Mr. Davies are con-sulting engineers for the Brooklyn Rapid TransitCompany. The electrification of a new tunnel, known as theOtira Tunnel, about midway in the length of the South-ern Alps in South Island, New Zealand, is being con-sidered. Suitable energy could be supplied by the con-struction of hydroelectric plants in the near-by large and comprehensive scheme is also under con-sideration for the supply of electrical energy in theNorth Island of New Zealand, with a view towardutilizing part of this energy for railway electrificationand for promoting a system of light railways through-out the country districts now suffering from lack ofcommunication. 728 ELECTRIC RAILWAY JOURNAL [Vol. XLVII, No. 16. S. T. RYS. PAVING PLANT—LEFT TO RIGHT, MIXER TOWER (BOILER HOUSE IN REAR), DUST HOUSE, STORAGE BINS AND TOWER Concrete and Asphalt Mixing PlantSaves Its Cost in One Year By the Installation of a Complete Equipment for Laying and Repairing Macadam and AsphaltPaving and for Mixing and Placing Concrete, the San Francisco-OaklandTerminal Railways Have Achieved Remarkable EconomiesBy GEORGE H. BINKLEY Formerly Chief Engineer Maintenance of Way and Structures Department, San Francisco-Oakland Terminal Railways THE San Francisco-Oakland Terminal Railways oper-ate a system of tracks in nine municipalities andtwo counties on the east side of San Francisco total length of single and double track amounts to258 miles, single-track measurement, some of which ison private right-of-way. Practically all of the pavingis of two kinds. The main thoroughfares are pavedwith standard asphalt, consisting of a 6-in., 1:3:6 con-crete base, covered with a 2-in. bind
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