A new system for elevated ways that allows not only half-height elevated ways, but elevated ways on uneven terrain. Such method involves an new object type pier and new ground type pier-deck where the ground is placed on top of a pier. The system also allows the pakset designer to place restrictions on the ribi of ways both on the pier-deck and under it, as well as place restrictions on what types of piers can be built on others what other types and what types of piers can be placed on the same tile as another.