15.2      Initial Steps in Design of Passenger Boarding Bridges

15.2.1           Step One – Programming

The consultant shall establish the Aircraft Fleet Mix that will be utilizing each existing or proposed passenger boarding bridge (PBB) in coordination with the following MDOT MAA Offices:

A.      Engineering – The assigned Task Manager will assist and coordinate the definition and extent of the project effort.

B.      Airport Operations – The representative will coordinate current and proposed use and schedule for the gate where the bridge will be installed and highlight any unique issues associated with each gate installation (schedule, fleet mix, existing conditions, etc).

C.       Commercial Management – The representative will assist with airline coordination and development with the fleet mix requirements and typical accessories (Chapter 15.4 Typical Accessories) that are to be included. Typically, the fleet mix should have the most flexibility between the airline projected to use the gate and the needs of Operations. All parties shall be consulted in order to arrive at a design solution that most efficiently addresses the consensus of needs for the airport while meeting all of the code requirements in the process.

D.      Planning/Fire Marshal – The representative will assist with approval of holdroom sizing requirements.

E.       Facilities Maintenance– The representative will assist with the electrical sub-metering requirements.

15.2.2           Step Two – Site Evaluation

The consultant shall inspect and evaluate existing and proposed site conditions that may impact the operational capabilities of each PBB. Some of the limiting site conditions that may be encountered are the following:

A.      Obstacles on or adjacent to the terminal or PBB that may inhibit the PBBs rotation (i.e. – light poles, building soffits and overhangs, trash compactors, access to garage or person doorways, pantograph mounting brackets, etc.).

B.      Obstacles on or adjacent to the terminal or PBB that may inhibit the PBBs extension and/or retraction (i.e., PC Air Units, 400 Hertz Units, Roof Mounted Vents, etc.).

In the event an existing foundation is being modified or a PBB is being relocated, the existing site condition, bolt pattern, systems, etc. shall be inventoried and confirmed prior to commencing design.

15.2.3           Step Three – Design

The consultant shall select a standard PBB Model/Size that will accommodate the fleet mix of aircraft for each gate which can be used as the prototype for purposes of bidding. The PBB sizing shall be based on and meet the requirements as outlined in Chapter 15.3 Passenger Boarding Bridge Design Requirements.

As part of Step Three a design report is to be provided with signed and sealed calculations as required. The report shall include site plans for each gate showing the proposed fleet mix, swing of each gate including minimum and maximum PBB lengths, and any additional information for future reference.