78 G. H. KNIBBS. 



that they can never become of importance, might be designed with 

 widths of from 20 to 25 metres, or say from 66 to about 80 feet. 

 Roads and streets of moderate importance, likely to require tram- 

 ways, cycle paths, central footpaths, and so on, might be of still 

 greater width> viz., of from 30 to 40 metres, or say of from 100 

 to 130 feet ; while still wider streets, set out with avenues of trees, 

 flower-beds, etc., might have any width of from 50 to 75 metres, 

 or say from 160 to 240 feet. 1 



With a suitable restriction as to height of buildings, such widths 

 as have been suggested will not present any difficulties as to 

 quantity of light, or as to suitable approach in cases of fire; while 

 the abundant access of sunlight and the sufficiency of room for the 

 planting of trees in the streets, makes it possible to ensure in the 

 highest degree the fulfilling of the requirements of hygiene. 



9. Localisation of the various types oj streets. — Whatever care 

 is taken, or however rigorous the control of occupation in the 

 creation of a city, it is hardly practicable to ensure such a dis- 

 tribution as shall conform absolutely to that which might, having 

 regard to the ultimate appearance of the city, be permanently 

 sanctioned : to attempt it would, as a rule, involve excessive 

 scattering of the population, or other injurious features On the 

 other hand any permitted departure from the distribution, deemed 

 the best in the general interest, tends to establish itself, and 

 there is the jeopardy that return to the original idea will be 

 effectually resisted — a jeopardy that is by no means chimerical in 

 a democratic community. This illustrates the signal importance 

 of securing at the outset a disposition of the general settlement 

 that shall practically accord with the ultimate intention, a result 

 that involves not only the closest study of all the effects of the 

 special localisation of the political, administrative, industrial, com- 

 mercial, scientific, educational, residential, and military centres, 

 but also an apperception of the reaction of each upon the other, 



1 The streets of Washington are from 80 to 120 feet, the avenues from 

 120 to 160 feet. 



