No overlap in time of use. The off-street parking requirements of two or more uses, structures, or parcels of land may be satisfied by the same parking or loading space used jointly to the extent that it can be shown by the owners or operators of the uses, structures, or parcels that their operations and parking needs do not overlap in point in time. The use requiring the greatest number of parking spaces shall determine the minimum number of spaces required for the shared parking. Projects that cross parcel boundary lines shall have an access management plan, including, but not limited to, cross-access easements for pedestrian and vehicular traffic.