law: The Delhi Municipal Corporation Act, 1957
  302. Minimum width of new public streets.-
  The Commissioner shall, from time to time, with the sanction of the Standing Committee, specify the minimum width of different classes of new public streets according to the nature of the traffic likely to be carried thereon, and the streets with which they join at one or both ends, the localities in which they are situated, the heights up to which buildings abutting thereon may be erected and other similar considerations.