The location and size of the use, the nature and intensity of the operations involved, the size of the site in relation to it, the location of the site with respect to the existing or future streets giving access to it, the volume of traffic generated by the use and the amount of available off-street parking for vehicles shall be such that it will be in harmony with the orderly development of the district, and the location, nature and height of buildings, walls and fences will not discourage the appropriate development and use of adjacent land and buildings or impair the value thereof. Operations in connection with any special exception use shall not be more objectionable to nearby properties by reason of noise, fumes, vibration or lights than would be the operations of any permitted use.