No loading or unloading zones shall be allowed on either side of the street and around the court square. There shall be one (1) loading and unloading zone allowed to a block and said zone shall be shared by all stores so choosing located in that block with an established need as demonstrated to the committee. Criteria for need shall be limited to those stores where no rear access is available to said store, and if it is established that the loading or unloading of heavy or bulky merchandise is a routine and regular part of their business, and the absence of a loading zone would seriously handicap that business (Ord. #631, 10/03/85).