THE THEORY OF CITY DESIGN. 81 



to light traffic, these being separated from the side walks by a 

 row of trees on each side, while a central avenue or footwalk, 

 with foliage trees on each side, would complete the section. 

 Where there is little heavy vehicular traffic, strips forming garden 

 or grass plots, lying between the footwalks and the roadway, 1 

 might constitute a feature. These could be graced also with 

 shrubs of various kinds, and the centre of the street formed by a 

 line or lines of ornamental trees, with or without footwalks. 

 Roads and streets of less width would permit of a single row of 

 trees on each side and next to the footwalks, or a single or double 

 row in the middle. Cycle paths might well be introduced in 

 many of the streets, in such positions as involve a minimum of 

 interference with other forms of locomotion. 



11, Engineering features of streets. — The necessity for some 

 official control of the localisation of the different classes of occupa- 

 tion, which a regard for the general appearance and welfare of a 

 capital city not only justifies but imperatively demands, permits 

 its development to proceed on lines that obviate frequent changes 

 in the constructional features of the streets ; for these can all be 

 thoroughly considered at the outset. The mains, conduits, tunnels, 

 etc., required for water, gas, electric, or various forms of power- 

 supply, for sewerage systems, for telephone and telegraphic services 

 or for underground communication of any sort, can be located so 

 as to involve the minimum disturbance of traffic, and the least 

 expense for maintenance and repair; and the characteristic break- 

 ing up of, and injury to well-constructed streets, in order to reach 

 such mains and conduits, can thereby be rendered an unknown 

 element. Were it publicly realized how dearly we pay for our 

 stolid ignorance and want of foresight in municipal arrangements 

 generally, the constructional features of streets would perhaps be 

 very different to what they are. In future city-design, the 

 opportunity undoubtedly exists for avoiding that continual waste 

 of resource, which, turned to advantage in more lavishly equipping 



1 Or, as in Washington strips may be left between the side walks 

 and the property boundaries. 



F— Sept. 4, 1901. 



