THE THEORY OF CITY DESIGN. 69 



munication being the nearest together : a university and its 

 affiliated colleges might create another centre : technical and 

 high schools still another: an aggregation of great commercial 

 institutions yet another: and so on. Then again the industrial 

 occupations which would develope, might with advantage be 

 relegated to one quarter of the city, the large commercial houses 

 to another, while the environs would normally constitute the 

 residential sites, variously disposed according to the classes of 

 residence allowed to be erected. The study, in the original design, 

 should embrace all possibilities of extension for even remote 

 periods, so far, at any rate, as they can be foreseen ; and the 

 control of settlement should also be sufficient to ensure the 

 possibility of ultimate conformation to the first ideal, even if for 

 any sufficient reasons it be temporarily abandoned. 



5. Combination of radial and rectangular street- systems. — A 

 rigid conformity to the hexagonal-radial system for the streets of 

 a city, would constitute them three series of parallel lines, inter- 

 secting one another at an angle of 60°, and dividing the whole site 

 into equal equilateral triangles, while the rectangular system 

 consists of two sets of parallel lines intersecting at 90°, and 

 dividing the area into squares. The greatest distance to be 

 travelled in passing from any one point to any other, cannot in 

 the former case be greater than the direct distance multiplied by 

 the secant of 30°, nor in the latter than the direct distance 

 multiplied by the secant of 45°. Calling the direct distance 100, 

 the maximum distances of travel are 



Direct distance 100*00 



Hexagonal system 115*47 



Rectangular system 141*42 

 It might be thought therefore that the advantage in favour of the 

 hexagonal system is so pronounced as to exclude the adoption of 

 the rectangular altogether. It has always been felt, however, 

 that the rectangular system, has from the point of view of build- 

 ing construction much to commend it; it gives too, a better sense 

 of orientation in regard to travelling through a city; hence it may 



