After an access order is in place, and after hostilities between parents lessen, the children themselves often define or refine the access times as they mature. This allows them to incorporate their life more readily into what is often an "artificial" access arrangement.
Terms of access varied dramatically from case to case. The access parent often has a right to attend school functions, including parent-teacher days.
The access parent often has rights to school records or health records or whatever else may be of concern to particular parents. Many access orders specify who the children will spend holidays with or what parent has what weeks for summer vacation with the child.