. The sanitation of cities. r for whom this paper is primarilyintended. ?4 CHAPTER II THE CITY PLAN AND THE SANITARYUTILITIES It is obvious that the street plan of a city shouldnot only provide for traffic, and the various othermore apparent purposes for which streets andhighways are provided, but also for economy andefficiency in the installation and operation ofthe important sanitary utilities—water supplyand sewerage—in order that the water maytravel the shortest distance practicable from themain supply to the consumer, and the sewagethe shortest practicable distance to the point ofdisposal
. The sanitation of cities. r for whom this paper is primarilyintended. ?4 CHAPTER II THE CITY PLAN AND THE SANITARYUTILITIES It is obvious that the street plan of a city shouldnot only provide for traffic, and the various othermore apparent purposes for which streets andhighways are provided, but also for economy andefficiency in the installation and operation ofthe important sanitary utilities—water supplyand sewerage—in order that the water maytravel the shortest distance practicable from themain supply to the consumer, and the sewagethe shortest practicable distance to the point ofdisposal without such loss in velocity as wouldcause deposits in the sewers. But the city plan-ner, whose mind is usually occupied with citybeautification, and the needs of street traffic,often overlooks these sanitary improvements;and, in reforming or improving the street plan,often neglects the opportunity to design the newstreets with the view of more efficient sewers,that would afford a much more rapid concentra- 15 - •. fl^g^ i6 ^be Citi? plan anb tbe Sanitary \IltiUties tion of the flow, and lead the sewage to the mainoutfall before the suspended solids had time topass into solution. The first principles of street design require theproper accommodation of these utilities. Thisindeed, should be considered as one of the mamobjects, if not the most important object, to beobtained by the redesign and improvement of thestreet system, it is not necessary in this connec-tion to go into detail concerning the architecturaland engineering features, as to width, etc., ofstreets. The city planner will not neglect to takeproper care of this feature of his work. The street plan should be economical, and con-form to the topography, with the lines made assimple as possible. Various forms of plans arerecognized—as the radial and circumferential, therectangular or gridiron plan, and a combina-tion of these plans. In some instances, plans areused greatly resembling those of European citieso
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