That the general terms and conditions on which preliminary approval was granted shall not be changed, including but not limited to use requirements; layout and design standards for streets, curbs and sidewalks; lot size; yard dimensions and on-site and off-tract improvements; and any requirements peculiar to the specific site plan. The Borough may modify by ordinance such general terms and conditions of a preliminary approval as they may relate to public health and safety, provided that such modifications are in accord with amendments adopted by ordinance subsequent to approval.