ocr: relation to "urban renewal" projects undertaken when the city had become rich and powerful. The prime direction of the grid is slightly east of north (15.5 degrees). The basic modular unit of the plan is close to 57 meters. A number of residential structures are squares of this size. The plan of many of the streets seems to repeat various multiples of the 57-meter unit. The city's major avenues, which run parallel to the north- south axis, are spaced at regular intervals. Even the river running through the center of the city was canalized to conform to the grid. Miles from the city center, the ...
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