(1) In fixing the rates and charges for and term of use of City airport facilities, including rates, fees and charges for the exercise of any privilege or right as hereinafter provided, the Department of Commerce shall, in so far as possible, follow such standards as shall:

(a) promote the maximum usefulness of the City airports and, to the extent compatible therewith, utilize the airport facilities for the production of the greatest possible revenue;

(b) develop additional facilities to increase the usefulness of the airports and the availability of services;

(c) make such rates and charges for, and the term of, use of City airport facilities and services consistent with those generally prevailing for comparable space, facilities and services elsewhere;

(d) assure long-term revenues to the City at rates calculated to return the cost of providing any service or facility particularly requested by a user, including the debt service and costs of operation, if any, of such service or facility; and

(e) give consideration to the value of any investment or expenditure to be made by any lessee or licensee which will result in temporary or permanent improvement of an airport or any of its facilities or available services and which may have to be amortized over the term of the lease or license, or which may later become the property of the City under the terms or conditions thereof.

(2) The rates and charges to scheduled and non-scheduled air carriers of passenger or freight for the use of space and facilities in and about the grounds and buildings of the airports shall be calculated on one or more of the following bases:

(a) a charge per square foot of space used or occupied; or

(b) a flat guaranteed monthly, quarterly or annual rental, fee or charge; or

(c) a specified percentage of revenues received by such carrier; or

(d) a specified charge per passenger served by such carrier; or

(e) a specified charge per pound of freight or cargo carried by such carrier; or

(f) a specified charge per usage of any facility or per exercise of any privilege or right.

(3) The rates and charges to private and itinerant aircraft for the use of space and facilities in and about the grounds and buildings of the airports shall be calculated on one or more of the following bases:

(a) a charge per square foot of space used or occupied; or

(b) a flat guaranteed monthly, quarterly or annual rental, fee or charge; or

(c) a specified charge per usage of any facility or per exercise of any privilege or right.

(4) The rates and charges to furnishers of ground transportation to and from the airports, including taxi, limousine and bus services, shall be calculated on one or more of the following bases:

(a) a rate per square foot of space used or occupied; or

(b) a flat guaranteed monthly, quarterly or annual rental, fee or charge; or

(c) a specified percentage of revenues received for the service rendered; or

(d) a specified charge per passenger served; or

(e) a specified charge per usage of any facility or per exercise of any privilege or right.

(5) The rates and charges to lessees and licensees using space and facilities in and about the grounds and building of the airports for the purpose of furnishing either services to aircraft or consumer services to users of the airports shall be calculated on one or more of the following bases:

(a) a charge per square foot of space used or occupied; or

(b) a flat guaranteed monthly, quarterly or annual rental, fee or charge; or

(c) a specified percentage of revenues received by such lessee or licensee; or

(d) a specified charge per unit of service rendered; or

(e) a specified charge per usage of any facility or per exercise of any privilege or right.

(6) If, in the opinion of the Department of Commerce it is in the best interest of the City, the Department may permit any governmental agency of the United States of America or the Commonwealth of Pennsylvania to use the space and facilities in and about the grounds and buildings of the airports either for a nominal consideration or free of any charge.

(7) This ordinance shall not be construed to affect or impair the validity of the terms or conditions of any existing lease or license or other agreement for the use of space or facilities or the exercise of any privilege or right in and about the grounds and buildings of the airports.