37-54 - Modification of Design Standards of Pedestrian Circulation Spaces Within Existing Buildings LAST AMENDED 10/17/2007 The City Planning Commission may authorize a modification of any required minimum amount of pedestrian circulation space to be provided on #wide street# frontages and design standards, as indicated, for the following required pedestrian circulation spaces, to be provided within or under an existing #building# to remain on a #zoning lot#: (a) Arcade: minimum width, minimum height, obstructions, minimum clear width between obstructions, minimum length, column sizes (b) #Building# entrance recess area: minimum length, minimum depth from #street line#, minimum height, obstructions, clear space between obstructions and clear space between obstructions and #building# wall (c) Corner arcade or corner circulation space: minimum depth, minimum width of clear path, minimum height, obstructions (d) Through #block# connection: minimum width of unobstructed path, minimum height, through #block# level. The Commission may authorize a modification of design standards for pedestrian circulation spaces when the following findings are met: (1) a modification is needed because of the inherent constraints of the existing #building#; (2) the modification is limited to the minimum needed because of the inherent constraints of the existing #building#; and (3) the pedestrian circulation space as modified shall be equal in area, and substantially equivalent, to the required space in terms of quality, effectiveness and suitability for public use.