A.    Wherever the locations of streets are indicated in the thoroughfare plan as following existing roads, streets, section or half-section lines or other established property lines, they shall conform to such locations; provided, that streets lying wholly within a subdivision, and not designated as following an existing road or a section line, may be varied in their alignment which such variance promotes the plan of a neighborhood in accordance with good site planning principles, and if such alignment provides for the continuity of traffic movement.

    B.    Streets which follow irregular alignment or indicate revised alignments or are not referenced to established lines shall follow in a general manner the alignment shown in the thoroughfare plan. All street alignments shall be subject to detailed surveys which may be made by the city engineer, the city plan commission or other public agencies or by the owners of land to be subdivided. Such surveys shall be subject to the approval of the city board of public works and safety and the city plan commission in the acceptance of subdivision plans affecting such streets. (Prior code § 27-21)