UFC TOWER GLASS.pdf

UNIFIED FACILITIES CRITERIA (UFC)

NAVY AIR TRAFFIC CONTROL

FACILITIES

APPROVED FOR PUBLIC RELEASE; DISTRIBUTION UNLIMITED

Including change 4 and 5, 30 July 2007

UFC 4-133-01N

24 February 2005

UNIFIED FACILITIES CRITERIA (UFC)

DESIGN: NAVY AIR TRAFFIC CONTROL FACILITIES

Any copyrighted material included in this UFC is identified at its point of use.

Use of the copyrighted material apart from this UFC must have the permission of the copyright holder.

U.S. ARMY CORPS OF ENGINEERS

NAVAL FACILITIES ENGINEERING COMMAND (Preparing Activity) AIR

FORCE CIVIL ENGINEER SUPPORT AGENCY

Record of Changes (changes are indicated by \1\ ... /1/)

Change No. Date Location

1 7 March 2007 Figure 1, page 38

2 7 March 2007 Paragraph 2.5, page 15

3 20 June 2007 Editorial corrections throughout.

4 30 July 2007 Paragraph 2-5.3.11 and 2-5.3.12, page 18

5 30 July 2007 Paragraph 2-5.1, page 15

This UFC supersedes MIL-HDBK-1024/1, in part, dated February 1994.

FOREWORD

The Unified Facilities Criteria (UFC) system is prescribed by MIL-STD 3007 and provides planning, design, construction, sustainment, restoration, and modernization criteria, and applies to the Military Departments, the Defense Agencies, and the DoD Field Activities in accordance with USD(AT&L) Memorandum dated 29 May 2002. UFC will be used for all DoD projects and work for other customers where appropriate. All construction outside of the United States is also governed by Status of forces Agreements (SOFA), Host Nation Funded Construction Agreements (HNFA), and in some instances, Bilateral Infrastructure Agreements (BIA.)

Therefore, the acquisition team must ensure compliance with the more stringent of the UFC, the SOFA, the HNFA, and the BIA, as applicable.

UFC are living documents and will be periodically reviewed, updated, and made available to users as part of the Services’ responsibility for providing technical criteria for military construction.

Headquarters, U.S. Army Corps of Engineers (HQUSACE), Naval Facilities Engineering Command (NAVFAC), and Air Force Civil Engineer Support Agency (AFCESA) are responsible for administration of the UFC system. Defense agencies should contact the preparing service for document interpretation and improvements. Technical content of UFC is the responsibility of the cognizant DoD working group. Recommended changes with supporting rationale should be sent to the respective service proponent office by the following electronic form: Criteria Change Request (CCR). The form is also accessible from the Internet sites listed below.

UFC are effective upon issuance and are distributed only in electronic media from the following source:

Whole Building Design Guide web site http://dod.wbdg.org/.

Hard copies of UFC printed from electronic media should be checked against the current electronic version prior to use to ensure that they are current.

AUTHORIZED BY:

DONALD L. BASHAM, P.E.

Chief, Engineering and Construction

U.S. Army Corps of Engineers

KATHLEEN I. FERGUSON, P.E.

The Deputy Civil Engineer DCS/Installations & Logistics Department of the Air Force

Dr. GET W. MOY, P.E.

Director, Installations Requirements and

Management Office of the Deputy Under Secretary of Defense

(Installations and Environment)

DR. JAMES W WRIGHT, P.E.

Chief Engineer Naval Facilities Engineering Command http://www.wbdg.org/pdfs/ufc_implementation.pdf http://www.wbdg.org/ccb/browse_cat.php?o=29&c=4 http://www.wbdg.org/ccb/browse_cat.php?o=29&c=4 http://www.wbdg.org/ccb/browse_cat.php?o=29&c=4 http://dod.wbdg.org/

CONTENTS

CHAPTER 1 INTRODUCTION

1-1 SCOPE

1-1.1 Other Aviation Operational and Support Facilities

1-1.2 Other Design Considerations

1-1.3 Facility Plates

1-2 PURPOSE OF CRITERIA

1-3 PREDESIGN PROGRAMMING

1-3.1 Chief of Naval Operations (CNO)

1-3.2 Naval Facilities Engineering Command (NAVFAC)

1-3.3 Naval Air Systems Command (NAVAIR)

1-3.4 Maintenance Authority

1-3.5 Facility Requirements Document (FRD) and Facility

Requirements Supplement (FRS)

1-3.6 Designer

1-3.7 Intrusion Detection Systems Engineering Plan (IDSEP)

1-4 POLICY STATEMENT

CHAPTER 2 AIR TRAFFIC CONTROL FACILITIES

2-1 GENERAL

2-2 RADAR AIR TRAFFIC CONTROL FACILITY (RATCF)

2-2.1 Function

2-2.2 Location

2-2.3 Architectural and Structural Requirements

2-2.5 Security

2-2.6 Additional Design Criteria

2-3 FLEET AREA CONTROL AND SURVEILLANCE FACILITY

(FACSFAC)

2-3.1 Function

2-3.2 Location

2-3.3 Architectural and Structural Requirements

2-3.4 Mechanical Requirements

2-3.5 Electrical Requirements

2-3.6 Security

2-3.7 Additional Design Criteria

2-4 JOINT CONTROL FACILITY (JCF)

2-4.1 Function

2-4.2 Location

2-4.3 Architectural and Structural Requirements

2-4.4 Mechanical Requirements

2-4.5 Electrical Requirements

2-4.6 Lighting

2-4.7 Security

2-4.8 Additional Design Criteria

2-5 AIR TRAFFIC CONTROL TOWER (ATCT)

2-5.1 Function

2-5.2 Tower Location and Height i

2-5.3 Architectural and Structural Requirements

2-5.4 Mecanical Requirements

2-5.5 Plumbing

2-5.6 Design Dead Loads

2-5.7 Design Live Loads

2-5.8 Antiterrorism Requirements

2-5.9 Electrical Requirements

2-5.10 Lighting

2-5.11 Fire Protection

2-5.12 Security

2-5.13 Additional Design Criteria

CHAPTER 3 GENERAL DESIGN CRITERIA

3-1 FACILITY PLANNING

3-2 AIRFIELD SAFETY

3-2.1 Objects Located on Airfield

3-2.2 Objects in Violation of Airfield Safety Criteria

ARCHITECTURAL AND STRUCTURAL REQUIREMENTS

3-3.1 Acoustics

3-3.2 Handicapped Employees

3-3.3 Structural Design

3-3.4 Reflective Surfaces

3-3.5 Permanent Floors

3-3 MECHANICAL ENGINEERING

3-4.1 Energy Conservation 3-4.2 Equipment Selection

3-4 FIRE PROTECTION

3-5.1 Electronic Equipment Areas

3-5.2 Elevators

3-5.3 Fire Alarm and Detection Systems

3-5.4 Electronic Equipment Spaces

3-5.5 Raised Floor Cable Spaces

3-5.6 Remote and Unattended Facilities

3-5 ELECTRICAL ENGINEERING

3-6.1 General Requirements

3-6.2 Emergency Electrical Power

3-6 PHYSICAL SECURITY

3-7.1 General Requirements

3-7.2 Antiterrorism/Force Protection (ATFP)

3-7.3 Interior Physical Security

3-7.4 Vaults

3-7 SAFETY AND HEALTH

3-8.1 General Requirements

3-8.2 Human Engineering

3-8.3 Electromagnetic Hazards

3-8.4 Hazard Classification

3-8.5 Life Safety ii

Including change 4 and 5, 30 July 2007

3-8 DESIGN STANDARDS

APPENDIX A GLOSSARY OF ACRONYMS

APPENDIX B REFERENCES

FIGURE

S

Figure 1 ATCT, Typical Building Section

Figure 2 ATCT, Typical Floor Layout

Figure 3 ATCT, Ground Floor Layout

Figure 4 ATCT, Cab Layout

Figure 5 ATCT, Roof Plan

Figure 6 RATCF Facility Site Plan

Figure 7 RATCFBuilding Layout

Figure 8 RATCF Facility Design Notes

Figure 9 FACSFAC Facility Site Plan

Figure 10 FACSFAC Building Layout

Figure 11 FACSFAC Facility Design Notes

Figure 12 Joint Control Facility (Medium Density) Site Plan

Figure 13 Joint Control Facility (High Density) Site Plan

Figure 14 Joint Control Facility (Medium Density) Building Layout

Figure 15 Joint Control Facility (High Density) Building Layout

Figure 16 Joint Control Facility (High Density) Building Layout – Part 1 .. 53

Figure 17 Joint Control Facility (High Density) Building Layout – Part 2 .. 54

Figure 18 Joint Control Facility Design Notes

Figure 19 Radio Antenna Tower

Figure 20 ASR Antenna Tower

Figure 21 Indoor Emergency Generator Room

TABLES

Table 1 Floor Loads

Table 2 Room Noise Levels

Table 3 Air Traffic Control Activity Gross Area Allowances

Table 3M Air Traffic Control Activity Gross Area Allowances

CHAPTER 1 INTRODUCTION

1-1 SCOPE.

This Unified Facilities Criteria (UFC), UFC 4-133-01, contains guidance for (Navy and contract) planners, engineers, and architects on the planning, engineering, and design of Department of the Navy (DoN) air traffic control facilities. This is supplementary guidance to be used in conjunction with Facility Requirements Documents (FRD), Facility

Requirements Supplements (FRS), Intrusion Detection Systems Engineering

Plans (IDSEP), Base Exterior Architecture Plans (BEAP), and other DoD and Department of Transportation (DOT) material for the planning and construction of Naval air traffic control faculties facilities and the preparation of DD 1391 MILCON and Step II Special Project Submissions.

It is assumed that general architectural and engineering standards are known or available to the planner. Navy criteria concerning basic and detailed construction and engineering criteria are not addressed in this

UFC and are a prerequisite for facility planning.

1-1.1 Other Aviation Operational and Support Facilities.

Criteria for the design of other aviation operational and support facilities are not contained in this UFC, but will be included in future UFCs. Until these documents are published, continue to use the criteria in Military Handbook (MIL- HDBK) 1024/1 for these facilities.

1-1.2 Other Design Considerations.

Closely consult ATC and Air Operations (OPS) officers of shore activities from project definition through the entire design effort of any project.

1-1.3 Facility Plates.

Facility plates show conceptual data that shows key features of Aviation

Operational and Support Facilities, functional layouts, design data and similar pertinent data. Plates are furnished as a design guide to assist in planning a new facility. Plates are representative of a generic type of air traffic control facilities.

Variations to the plans are to be determined by the using activity, the design activity, and the designer of record during the development of the design. The responsibility of the design rests with the designer of record.

UFC 4-133-01 provides design criteria for air traffic control towers.

The design criteria assigns space and provides a conceptual design layout for equipment and personnel supporting the control of aircraft movement around the airfield. The updated control tower design criteria provides guidance and methods for establishing the tower height resulting in the air traffic controller’s unobstructed line of sight to the airfield approach areas, runways, taxiways, aircraft parking areas, and all other operational areas over which aircraft movements must be controlled. The design criteria discusses the functional requirements for the cab design including the glass strength and color consistent with FAA practices, provides the Navy/Marine Corps policy for handicap accessibility and sustainability in air traffic control facilities, and clarifies the Navy/Marine Corps position on seismic design of control towers as an essential facility. The newly updated design criteria provides for enhanced air traffic controller safety responsible for diverting aircraft during fires or other natural disasters

1-2 PURPOSE OF CRITERIA.

This UFC will be used for planning individual projects, preparing engineering documentation, and preparing contractual documents for construction. It is intended to present the basis for standardization of practices and identify a common baseline to be used as a guide during the planning of new facilities or the modification of existing facilities.

1-3 PREDESIGN PROGRAMMING.

Naval aviation is a highly dynamic field that depends on state-of-the-art computer technology. The design of Navy air traffic control facilities requires close coordination between the designer and other parties. Consider a pre-design programming session at the host activity to establish specific requirements for the proposed facility.

Responsibilities involved in pre-design stages are as follows:

1-3.1 Chief of Naval Operations (CNO).

The CNO, as the user, states the needs of the ATC Facility for research and development, improved equipment, new equipment, spare and repair parts, consumables, training, maintenance, personnel facilities, and any other requirements of the user.

Code N785F is the governing body or Operations Navy (OPNAV) sponsor for all Naval Air Traffic Control (ATC), Air Navigational Aids and

Landing Systems (NAALS) programs, operations and funding. CNO is responsible for formulating policies, directives, procedures and guidelines that govern planning, programming and implementation of the

NAALS ATC program and associated equipment for use at naval aviation shore facilities. CNO is responsible for validating Operational

Requirements, approving Operational Capability Improvement Requests

(OCIR), representing the Navy in interagency agreements with the

Federal Aviation Administration (FAA) and other DoD components and appropriating funds for NAALS acquisition, research, development, testing, evaluation, operations, and maintenance.

1-3.2 Naval Facilities Engineering Command (NAVFAC).

NAVFAC is responsible for design, development and construction of the facilities ancillary to and/or required for the support or housing of electronic equipment and operating personnel. NAVFAC provides technical guidance and direction in shore facility engineering from project inception to completion. To support ATC electronic facilities construction, NAVFAC works closely with Space and Naval Warfare Systems

Center Charleston (SSCC) to ensure that. .

1-3.3 Naval Air Systems Command (NAVAIR).

Naval aviation facility requirements are driven by a multitude of Navy and Marine Corps aircraft, weapons systems, airborne electronics systems and related ground-based aeronautical equipment, training and material support. NAVAIR works with the respective program entities to identify unique aviation and operational support facilities requirements. As the

Navy Lead Field Activity (LFA) for National Airspace System

Modernization (NAS

1-3.4 Maintenance Authority.

SPAWAR exercises technical control through regional and district offices, whose responsibilities include installation and maintenance engineering of electronic equipment that is beyond the capacity of station forces. Regional and district offices represent SPAWAR for electronic engineering control during facility design development. SSCC represents NAVAIR for electronic engineering control and development of

ATC electronic facilities design.

1-3.5 Facility Requirements Document (FRD) and

Facility Requirements Supplement (FRS).

The Air Traffic Control Tower (ATCT) Facility Requirements Document

(FRD) provides construction requirements and recommendations in support of Military Construction (MILCON) Projects and Renovation/Repair

Projects. The FRD provides amplifying and current information not contained in the various ATC related construction references.

Information pertaining to site-specific details of construction and design are covered in the Facility Requirements Supplement (FRS).

Stated requirements are in support of the Air Traffic Control (ATC) electronic equipment to be installed once the construction has been completed, and are restricted to those items in direct support of ATC operations.

Requirements not pertaining to ATC systems support must be obtained from station personnel. Stated recommendations are in support of ATC and

Ground Electronics Maintenance Division (GEMD) or Air Traffic Control

Maintenance Branch (ATCMB) operations.

1-3.6 Designer.

The designer (planner, engineer, and architect) enters design development at the pre-design programming stage, after the operational requirements have been established. The designer plans the facility to satisfy the operational requirements set forth in this UFC and in the to FRD/FRS, IDSEP, and

BEAP, and prepares project drawings and specifications under the control of NAVFAC and the guidance of SSCC. While maintaining close liaison with the NAVFAC command responsible for the project, the designer is responsible for coordinating all technical matters with the sponsors and users of the project.

1-3.7 Intrusion Detection Systems Engineering Plan

(IDSEP).

SSCC Code 70 is directed by Commander Naval Investigative Service

Command (COMNISCOM), OP-09, to prepare IDSEPs for Electronic Sensor

System (ESS)/Intrusion Detection System (IDS) installations when a

MILCON is required. The reference document for the IDSEP is Section 6.0 of SPAWARINST 2804.1, Policy and Procedures Concerning Base Electronic Systems

Engineering Plan and is equivalent to a MILCON base electronic system engineering plan (BESEP.) The scope of the IDSEP is specific only to detailed requirements for the design of the facility in order to accommodate ESS/IDS systems and related electronic equipment.

1-4 POLICY STATEMENT.

Base the design of air traffic control facilities on operational requirements and the guidance contained in this UFC. Operational facilities should incorporate the user's requirements, provide the most effective support possible, and accommodate the best safety, habitability, energy conservation, maintenance, and training characteristics. Operational requirements should take precedence over other criteria such as convenience or cost should compromises be required. Documents such as the FRD/FRS applicable NAVFAC publications and other pertinent Navy and DoD documents will be the governing sources for establishment of requirements.

CHAPTER 2 AIR TRAFFIC CONTROL FACILITIES

2-1 GENERAL.

Per the Naval Air Training and Operating Procedures Standardization

(NATOPS) Air Traffic Control Manual (NAVAIR 00-80T-114), shore air traffic control facilities (ATCFs) are divided into 7 major classes that encompass common elements of air traffic control:

a. Class I Flight Planning Facility,

b. Class II Control Tower Facility,

c. Class IIIA/IIB combined Control Tower and GCA Facility,

d. Class IVA/IVB Approach Control Facility,

e. Class VA/Class VB Joint Control Facility, and

f. Class VI Fleet Area Control and Surveillance Facility

g. Class VII Combined Center

The class facility is then equipped in accordance with the matrixes set forth in the Baseline Planning Criteria for the Naval Air Traffic

Control Facility Resources Ashore (OPNAV 3722.35 series.) The buildings that enable safe air traffic control services in these classes can similarly be grouped into four types.

a. Radar air traffic control facility (RATCF) buildings, which are required for Class III, IV, V, and VII

ATCFs.

b. Fleet Area Control and Surveillance Facilities

(FACSFAC) buildings, which are required for Class

VI ATCFs.

c. Air Traffic Control Tower (ATCT) buildings, which are required for Class II, III, IV, V, and VII

d. Flight planning facilities, which are required for Class

I, II, III, IV, V, and VII. Flight planning facilities are not covered in this UFC.

This chapter contains information on four facility types:

RATCF para 2-2

FACSFAC para 2-3

JCF para 2-4

ATC para 2-5

2-2 RADAR AIR TRAFFIC CONTROL FACILITY (RATCF).

2-2.1 Function.

Radar air traffic control facilities (RATCF) enable the radar branch to provide air traffic control services using installed radar. The function of the radar branch is to provide radar ATC services to instrument flight rules (IFR) and visual flight rules (VFR) air traffic within assigned airspace. The scope of radar services provided will vary according to equipment installed and the delegated airspace.

The scope and complexity of the services are the significant design drivers. Local agreements may dictate that an FAA air traffic representative be provided office space in the air traffic control facility The RATCF building contains equipment used for controlling air traffic and is staffed by air traffic controllers and air OPS, administrative and maintenance support personnel. The ASR, PAR, Precision Approach Landing System (PALS), Transmitting and Receiving

Sites, and Navigation Aids Systems (NAVAIDS), all of which are remotely located, are monitored and controlled in the RATCF. The RATCF contains an IFR control room that includes the radar display consoles and communications control equipment. An adjacent terminal equipment room houses all automation central (or terminal) equipment, maintenance positions and audio/video tape recorders. An office for the FAA liaison officer is required at joint operated Navy/FAA terminal radar approach control (TRACON) facilities.

2-2.2 Location.

Locate the RATCF building adjacent to the ATCT where siting requirements permit.

2-2.3 Architectural and Structural Requirements.

See Figures 1 through 5 and Table 1. Provide:

a. Removable, modular, access flooring in the IFR and IFR equipment rooms with 457.2 mm (18 in.) of clearance provided between the floor panels and sub floor to accommodate wiring and insulated piping. See Paragraph 3-

3.5.1.

b. A 2.9 m (9 ft.) clear ceiling height above accessible flooring.

c. Built-in Electrostatic Dissipating (ESD) workbenches and shelving in the IFR equipment room.

d. Facility and restroom areas must conform to the Uniform Federal Accessibility Standards (UFAS).

e. Interior and exterior acoustical treatment to attain the room criteria described in Paragraph 3-3.1. Use soft textured acoustical wall panels in the IFR room.

f. Cable trays or conduits between the ATCT and the RATCF for intra-facility cabling. The exact dimensions of the cable trough or size and number of conduits are specified in the FRS.

2-2.3.1

Windows.

Do not provide windows in IFR or IFR equipment rooms. Provide insulated glazing for noise reduction in administrative areas. See

Paragraph 3-6.3.6.

2-2.4 Electrical Requirements.

2-2.4.1 Uninterrupted Power Supply (UPS).

Provide non-redundant UPS with maintenance bypass switch in accordance with Paragraph 3-5.2.3. Use the anticipated load to determine the size of the UPS. ATC electronic equipment loads will be provided in the FRS

2-2.4.2 Emergency Electrical Power.

Provide an emergency generator with automatic starting and switching capability as described in Paragraph 3-5.2. Provide emergency power to:

a. All loads as required by NFPA-101, Life Safety Code.

b. Electronic equipment in the IFR and IFR equipment rooms.

c. Mechanical systems supporting electronic equipment.

d. Exterior security lighting and security systems.

2-2.4.3

400-Hz Power.

Provide 400-Hz (Hz) power in accordance with Paragraph 3-5.2.4 when required by the FRS.

2-2.4.4 Lighting.

Design lighting in accordance with HB-9-00, Lighting Handbook. Provide dimmer adjustable red or blue lights in the IFR room. See SSCC FRD for additional information.

2-2.5 Security.

The RATCF is normally located within restricted areas that typically meet the minimum-security measures for external security. If the facility is located within a restricted area of a lower level of security or is remotely located and outside of an established restricted area, provide additional measures to meet the minimum-security requirements for the level of security assigned to the facility. Security at the main building entrance usually requires a single entry point with visitor control. Remote locks, video cameras, card readers, and/or keypads may be required by NISCOM as components of the IDS. The level of security and the designer's responsibility for particular security elements will be designated in the IDSEP. See

Paragraph 3-6. Provide:

a. Electronic cipher door locks at interior entrance doors to IFR and terminal equipment rooms.

b. Exterior doors in emergency generator/electrical and terminal equipment rooms with no access hardware on the outside.

2-2.6

Additional Design Criteria.

Refer to Chapter 3, "General Design Criteria" for facility design requirements not addressed above.

2-3 FLEET AREA CONTROL AND SURVEILLANCE

FACILITY (FACSFAC).

2-3.1 Function.

The FACSFAC building houses the Navy Tactical Data System/Advanced

Combat Direction System (NTDS/ACDS) equipment and personnel to provide a variety of services to air, surface and subsurface units. These services are provided to both military and civilian users and include radar surveillance and various forms of air traffic control in warning and other special airspace areas. Other services include surface operating area management, ground controlled intercept (GCI), operating area scheduling and range control. The FACSFAC normally operates continuously.

2-3.2 Location.

Locate the FACSFAC building as a stand-alone facility.

2-3.3 Architectural and Structural Requirements.

See Figures 9, 10 and 11. Provide:

a. Removable, modular, access flooring in the operations, and electronic equipment/maintenance rooms with 457.2 mm (18 in.) of clearance provided between the floor panels and sub floor to accommodate wiring and insulated piping. See

Paragraph 3-3.5.1.

b. Interior and exterior acoustical treatment to attain the room criteria described in Paragraph 3-3.1. Use soft textured acoustical wall panels and movable sound absorbent partitions in the operations room.

c. A clear ceiling height of 4.3 m (14 ft.) (finished floor to ceiling) in the operations area.

d. A tiered seating area in projection auditorium.

e. Radio Frequency (RF) shielding throughout the crypto room.

See MIL-HDBK-1195, Radio Frequency Shielded Enclosures and Shielding; requirements must be confirmed by Naval Electronics Systems Security Engineering Center (NESSEC).

f. Facility and restroom must conform to the UFAS.

2-3.3.1

Do not provide windows in operations, NTDS/ACDS system, and electronic equipment/maintenance rooms. Provide insulated glazing for noise reduction in administrative areas. See Paragraph 3-6.3.6.

2-3.4 Mechanical Requirements.

Design the mechanical system to meet the criteria in Paragraphs 3-4, UFC 3- 420-01 Design: Plumbing Systems, and MIL-HDBK 1003/3 Heating, Air Conditioning, and Dehumidification Systems. Provide:

a. Automatic thermostatic control.

b. A four-pipe chilled/hot water distribution system with separate air handlers for each zone or dehumidifying system to work in conjunction with the air conditioning system.

c. Capability for future expansion of the heating, ventilation, and air conditioning (HVAC) system. Use piping designed for low friction and velocity losses at the maximum flows expected.

2-3.4.1 Air Conditioning.

Provide:

a. Two parallel piped air-cooled chillers, each designed for

60 percent of the total building-cooling load. Alternate operation of chillers automatically, on a regular basis, when load is less than 60 percent. Consider cold storage to minimize power peaks.

b. One chilled water circulation pump for each chiller plus a manifold spare pump. Design chiller circuitry so that the pump must operate and water flow before the chiller is energized. The spare pump may be manually operated. Provide secondary chilled water loops with three-way valves at coils in each circuit to result in constant flow through chiller.

c. Divide the building into three cooling zones: administrative areas, operations areas, and the equipment areas. Provide separate air handlers and ducting systems for each zone.

Provide sound attenuators for all supply ductwork. Consider more than one air handler for large zones.

d. Provide two air handlers for the operations and electronic equipment rooms. Design the air handler controls to regulate the units as primary and secondary with each unit alternating as the primary. Provide air handlers capable of controlling humidity, equipped with electric heat, and specifically designed for computer room applications. See MIL-HDBK-1012/1, Electronic Facilities Engineering.

2-3.4.2

Heating

Provide fuel oil or gas operated boiler heating system designed to accommodate the largest heating load anticipated. Provide two circulation pumps, each designed for 100 percent of the total building-heating load. Design the pump controls to regulate the pumps as primary and secondary with each pump alternating as the primary.

2-3.5 Electrical Requirements.

2-3.5.1 Uninterrupted Power Supply (UPS).

Provide non-redundant UPS with maintenance bypass switchin accordance with Paragraph 3-5.2.3. Use anticipated load to determine the size of

UPS. Use a separate plumbing and electrical chase that extends from the ground floor to the cable access level.

2-3.5.2 Emergency Electrical Power.

a. All loads as required by NFPA-101.

b. Electronic equipment in operations and with maintenance bypass switch.

c. Building mechanical systems supporting electronic equipment.

2-3.5.3

Provide 400-Hz (Hz) power in accordance with Paragraph 3-5.2.4, when required by the FRS.

2-3.6 Security.

The RATCF is normally located within restricted areas that meet the minimum- security measures for external security. When the facility is located within a restricted area of a lower level of security or is located remote and outside of an established restricted area. Provide additional measures to meet the minimum security requirements for the level of security assigned to the facility. Security at the main entrance usually requires a single entry point with visitor control.

Remote locks, video cameras, card readers, and/or keypads may be required by NISCOM as components of the IDS. The level of security and the designer's responsibility for particular security elements will be designated in the IDSEP. See Paragraph 3-6. Provide:

a. Electronic cipher door locks at all access points to the IFR room and electronic equipment rooms.

b. Exterior doors in the IFR room and electronic equipment rooms with no access hardware on the outside.

c. Closed circuit TV (CCTV).

d. Security fencing and guard post for facilities located outside the secure area of the Naval installation.

e. Personnel identification, visitor check-in, and control system to control ingress and egress.

2-3.7

2-4 JOINT CONTROL FACILITY (JCF).

2-4.1 Function.

A combined ATCF and ROC/FACSFAC that may provide airport traffic control, low approach and landing, terminal area control, and special use airspace control services.

2-4.2 Location.

Locate the JCF building adjacent to the ATCT where siting requirements permit. 2-4.3 Architectural and Structural Requirements.

See Figures 12 through 18. Provide:

a. Removable, modular, access flooring in the operations, and the electronic equipment/maintenance rooms with 457.2 mm (18 in.)

of clearance provided between the floor panels and sub floor to accommodate wiring and insulated piping. See Paragraph 3- 3.5.1.

b. Interior and exterior acoustical treatment to attain the Room Criteria described in Paragraph 3-3.1. Soft textured acoustical wall panels and movable sound absorbent partitioning in the operations room.

c. A clear ceiling height of 4.2674 m (14 ft) (finished floor to ceiling) in the operations area.

d. A tiered seating area in projection auditorium.

e. Radio Frequency (RF) shielding throughout the crypto room.

See MIL-HDBK-1195, requirements must be confirmed by Naval Electronics Systems Security Engineering Center (NESSEC).

f. Facility and restroom areas must conform to the UFAS.

g. Cable trays or conduits between the ATCT and the JCF for intra- facility cabling. The exact dimensions of the cable trough or size and number of conduits are specified in the BESEP.

2-4.3.1

Do not use windows in operations, NTDS/ACDS system, and equipment/maintenance rooms. Provide insulated glazing for noise reduction in administrative areas. See Paragraph 3-6.3.6.

2-4.4 Mechanical Requirements.

Design the mechanical system to meet the criteria in Paragraphs 2-2 (RATCF,) UFC 3-420-01 Design: Plumbing, and MIL-HDBK 1003/3 Heating, Air Conditioning, and Dehumidification Systems. Provide

a. Automatic thermostatic control.

b. A four-pipe chilled/hot water distribution system with separate air handlers for each zone or dehumidifying system to work in conjunction with the air conditioning

c. Capability for future expansion of the HVAC system. Use piping designed for low friction and velocity losses at the maximum flows expected.

d. Chilled water requirements will be provided in the

SSCC FRS. 2-4.4.1 Air Conditioning.

Provide:

a. Two parallel piped air-cooled chillers, each designed for

60 percent of the total building-cooling load. Alternate operation of chillers automatically, on a regular basis, when load is less than 60 percent. Consider cold storage to minimize power peaks.

b. One chilled water circulation pump for each chiller plus a manifold spare pump. Design chiller circuitry so that the pump must operate and water flow before the chiller is energized. The spare pump may be manually operated.

Provide secondary chilled water loops with three-way valves at coils in each circuit to result in constant flow through chiller.

c. Divide the building into three cooling zones:

administrative areas, operations areas, and the equipment areas. Provide separate air handlers and ducting systems for each zone. Provide sound attenuators for all supply ductwork. Consider more than one air handler for large zones.

d. Provide two air handlers for the operations, and electronic equipment/maintenance rooms. Design the air handler controls to regulate the units as primary and secondary with each unit alternating as the primary.

Provide air handlers capable of controlling humidity, equipped with electric heat, and specifically designed for computer room applications. See MIL-HDBK-1012/1.

2-4.4.2 Heating.

Provide fuel oil or gas operated boiler heating system designed to accommodate the largest heating load anticipated. Provide two circulation pumps, each designed for 100 percent of the total building-heating load. Design the pump controls to regulate the pumps as primary and secondary with each pump alternating as the primary.

2-4.5 Electrical Requirements.

2-4.5.1 Uninterrupted Power Supply (UPS).

Provide non-redundant UPS with maintenance bypass switch in accordance with Paragraph 3-5.2.3. Use anticipated load to determine the size of

UPS.

2-4.5.2 Emergency Electrical Power.

a.

b.

All loads as required by NFPA-101.

Electronic equipment in operations, NTDS/ACDS, and equipment rooms.

c. Building mechanical systems supporting electronic equipment.

2-4.5.3

Provide 400-Hz (Hz) power in accordance with Paragraph 3-5.2.4, when required by the FRS

2-4.6 Lighting.

Design lighting in accordance with HB-9-00. Provide dimmer adjustable red or blue lights in the IFR room. See SSCC FRD for additional information.

2-4.7 Security

The JCF is normally located within restricted areas that meet the minimum- security measures for external security. If the facility is located within a restricted area of a lower level of security or is located remote and outside of an established restricted area, provide additional measures to meet the minimum- security requirements for the level of security assigned to the facility. Security at the main building entrance usually requires a single entry point with visitor control. Remote locks, video cameras, card readers, and/or keypads may be required by NISCOM as components of the IDS. The level of security and the designer's responsibility for particular security elements will be designated in the IDSEP. See Paragraph 3-6. Provide:

a. Electronic cipher door locks at all access points to operations room.

b. Exterior doors in operations, NTDS/ACDS system, equipment/maintenance, and mechanical/electrical rooms with no access hardware on the outside.

c.

d.

Closed circuit TV (CCTV).

Security fencing and guard post for facilities located outside of the secure area of the Naval installation.

e. Personnel identification, visitor check-in, and control system to control ingress and egress.

2-4.8

2-5 AIR TRAFFIC CONTROL TOWER (ATCT).

\2\ Design the Navy-Marine Corps Air Traffic Control Tower to be generally consistent with FAA Order 6480.7, Airport Traffic Control and Terminal Radar Approach Control Facility Design Guidelines. If a conflict exists between this UFC and FAA Order 6480.7, this UFC governs. Sizing of cab window mullions, cab glazing and electrical grounding are examples of where most recent FAA criteria should be considered. /2/

2-5.1 Function.

The ATCT building houses equipment and personnel for control of aircraft approaching and departing the terminal area or airport and aircraft and vehicular movement on the runways, taxiways and all other movement areas.

\5\ Navy ATCT buildings shall be designed consistent with F.A.A. Order

64807, except for cab glazing, due to the normally high wind and structural loads associated with typical Navy ATCT locations. /5/

2-5.2 Tower Location and Height.

2-5.2.1 The ATCT building houses equipment and air traffic control personnel who provide air traffic control services to aircraft, and vehicles operating in the vicinity of an airport or on the movement areas.

2-5.2.2 An ATCT Siting Report that recommends the optimum location, relative orientation, and the optimum size and height of the ATCT must be completed. The ATCT must be sited and physically oriented relative to the primary runways first, so as to obtain the best unobstructed view of the airport and aircraft primary movement areas (i.e., runways and taxiways), their associated VFR and IFR approach paths, traffic pattern entry points, traffic patterns, ground routes, parking areas, and VFR and IFR departure paths.

Consider planned runway and taxiway construction when siting the ATCT, as well as expected vegetation growth that cannot be cultivated due to various factors.

2-5.2.3 The ATCT itself should not be an obstruction (see paragraph

3-2.2) or affect IFR operations. Care must be taken not to site the

ATCT close to and/or under a flight path.

2-5.2.4 Lights and rotating beacons should not impair the visibility of the air traffic controllers. See NAVAIR 51-50AAA-2 (01

May 03) Airfield Lighting & Marking.

2-5.2.5 Other considerations for final siting include utility availability (water, sewer, storm, power, and gas), site access, security, and relationship to existing ATC Facilities and existing

ATCTs. Provide a tower location and height that results from a tower cab eye-level line of site (care should be taken in determining eye level to accommodate a variety of controllers height) intersecting

(furthest) airport traffic surfaces at a vertical angle of 35 minutes or greater. If an area directly below the ATCT requires controlling, consideration for relocating the ATCT to allow proper visual access to that area should be of prime importance.

Refer to FAA Order 6480.4, Airport Traffic Control Tower Siting Criteria and paragraphs 3-1 and 3-2.

2-5.2.6 The control tower facility design shall provide for efficient layout to operate and maintain all utilities required in support of mission. See Table 1 for normal facility building footprint square footage allowance.

2-5.3 Architectural and Structural Requirements.

See Figures 1 through 5. The ATCT is categorized as low, normal or high density based upon air traffic volume, as defined by FAA Order

6480.7. See

Table 1 for space allocation based on operator density level. In addition, the following criteria should be included:

Note: All reference to ATCT heights is to the tower cab finished floor. 2-5.3.1 Access Flooring.

Bonded modular static resistance access flooring and carpet in the tower cab with 457 to 610 mm (18 to 24 in.) of clearance provided between the floor panels and sub floor to accommodate cable trays, mechanical ducts, and insulated piping. Bond access floor to copper grid tied to the building grounding system.

Refer to paragraph 3-3.5.1.

2-5.3.2 Acoustical Treatment.

Design interior and exterior acoustical treatment to attain the room criteria described in paragraph 3-3.1.

2-5.3.3 Roof Structure.

Use a clear span roof structure (no interior columns) in tower cab.

2-5.3.4 Stairway and Hatches.

Provide folding ceiling stairway to a roof hatch for access to the roof from the tower cab floor. 2-hr. rated floor hatch (1.066 m [3 ft. 6 in.

] minimum) flush with top of access floor level and all other levels required to allow for moving of equipment between the cab and top elevator landing.

2-5.3.5 Outside Access.

Provide safe access for walking around the exterior of the control cab to facilitate exterior observations, window washing, etc. Use guardrails with vertical painted or galvanized metal balusters (38 mm

[1.5 in]) system at a minimum of 100 mm (4 in.) The 4-inch sphere rule does not apply to the railing systems on the catwalk or roof. These areas are considered maintenance areas and the railing should comply with the regulations for maintenance areas. The exterior catwalk can be a galvanized-metal or aluminum grate that allows snow to melt directly through without building up at the edge.

2-5.3.6 Elevators.

For ATCTs that have a tower cab floor height of 30.48 m (100 ft.) to the cab floor, or less, use a hydraulic elevator. For ATCTs that have a cab floor height of over

30.5 m (100 ft.), use traction-type elevator. Refer to ITG 01-1, Elevator Design Guide.

2-5.3.7 Retractable Covers.

Electrically operated retractable covers for tower cab windows at sites prone to hurricane and typhoon conditions. Electrically operated covers will have a method to mechanically open the covers in case of malfunction.

2-5.3.8 Electrical Hoist.

Provide a 226 Kg (500lb) capacity, remote controlled commercially available electric hoist in the tower cab. Suspend hoist from tower cab roof framing over the floor hatch. Coordinate posted hoist capacity with the cab floor hatch described in paragraph 2-5.3.4 to ensure that the cab floor hatch is not overloaded by lifted items.

Post appropriate administrative controls for the hoist and the floor access hatch

2-5.3.9 Raceway.

See SSCC FRD. Provide a cable raceway to tower cab roof through tubular cab roof columns. A cable raceway running horizontally around the roof through tubular steel section attached to the cab roof columns as part of the overall cab structural system. The horizontal tubular steel can either be placed at 1066 mm (42 in.) above the roof or lower with a metal guardrail attached to the tubular steel to a height of 1066 mm (42 in.) above the roof. The tubular steel can be used as a passageway for wiring to communication antennas on the roof perimeter. Base cable layout on distances from the inside of cab windows to back of consoles should be from 381 to 457 mm (15 to 18 in), maximum. (Consider the use of aluminum or steel, unfilled, access flooring in tower cab.)

2-5.3.10 Interior Walls.

Provide fire-rated walls for stair enclosure, plumbing and electrical chases. 2-5.3.11 Windows.

A window wall system could be used in the tower structure that has the capability to have other elements, such as louvers and metal panels completely interchangeable with glazing sections. Provide window walls on at least two sides of the tower (stairwell side is optional). This will allow both supply and return for HVAC equipment located within the floor from separate sides. If windows are used, maintenance and cleaning should be considered.

Unless wind design requirements dictate greater thickness, provide tower cab with 25.4 mm (1 in.) laminated glass that is composed of two layers of annealed glass with a clear plastic interlayer. Provide units with a light transmissivity of not less than 84 percent, heat transmission (U-value) of 1.00 maximum, and free of parallax or other optical distortion. Provide window shades for the tower cab windows. Refer to

FAA Specification FAA-E-2470, Transparent Plastic Window Shades.

/4/ When laminated glass is used, designer shall provide for special cab

HVAC design to minimize condensation forming on the gab glazing using humidity controls and attention to return air ducts adjacent to the cab side. Use insulated glazing when wind and other structural loadings permit. Navy control towers are generally located in high wind areas that do not permit use of insulated glass.

2-5.3.12 Glazing Retainage

The can designer shall design for wind and seismic loading required by sections 2-5.7.3.1 and 2-5.7.4, respectively. For special cases, an intermediate mullion strip may be considered only as a last resort.

Only one intermediate mullion strip per cab side is allowed. /4/

2-5.4 Mechanical Requirements.

Design the mechanical system to meet the criteria as follows:

a. The tower cab and the supporting electronics areas will be considered essential spaces. The HVAC criteria will be as follows.

Winter indoor design temperature = 20 o C (68

F)

Summer indoor design temperature = 21

C (70 o F)

Cooling control set point = 24 o C (75 o F)

Humidification set point = 40%

Dehumidification set point = 50%

Noise Criteria = The tower cab should be 25 or less. The Electronic equipment rooms can be 45.

b. ATCT cab HVAC distribution: The distribution will be continuous under the window diffuser system. The duct system will be low noise with a max static resistance of

21.17 Pa per 30.5 m (0.085 in of water per 100 linear ft).

The duct routing will be under the access floor and coordinated with electrical and equipment wiring routes.

Access in the base of the structural columns is critical for installing antenna cables. Diffusers will be floor grade linear type, located at the base of the windows providing an even coverage of glazing preventing condensation and drafts. Duct system will be coordinated with the structure, electrical, SPAWAR, and the control cabinet sizes and proximity to the window.

c. ATCT cab HVAC system: The system will be located directly under the tower cab level and consist of redundant HVAC equipment.

d. The pipe chase will be fire stopped at every floor. To prevent freezing, the chase will be opened with louvers, one high and one low between each floor. Provide supply grilles at every other landing complete with fire dampers.

e. Heat and cool the elevator equipment. Consideration will be given to ventilation air entering low and exiting high for cooling.

f. Air-condition the corridor and electrical room.

g. Heat the stair pressurization room and vestibule.

h. Heat the fire pump room.

i. Heat and air-condition the electronic spaces.

j. Heat the vestibule.

k. Air-condition the office and vestibule room.

l. The janitor and toilet room will have ceiling-mounted exhaust fans providing six air changes per hour minimum.

m.

n.

o.

Air-condition and heatthe Briefing room.

Heat the mechanical room.

Heat and air-condition the tower cab. The cab will also have a smoke removal fan controlled from the cab.

p. An elevator shaft smoke damper will be provided to meet life-safety criteria.

q. All critical spaces will have complete redundant system with automatic primary and secondary control to be able to maintain temperature and ventilation requirements.

r. All mechanical units will have automatic thermostatic control utilizing direct digital control.

s. The first choice for the heating and cooling system will be a four-pipe chilled and hot water distribution system with separate air handlers for each zone or dehumidifying system.

t. The chilled water system will consist of two parallel piped air-cooled chillers, each designed for 60 percent of the total ATCT cooling load. Alternate operation of chillers automatically, on a regular basis, when load is less than 60 percent. Consider cold storage in minimize power peaks. One chilled water circulation pump for each chiller, plus a manifold spare pump will be provided. The spare pump will automatically come on line to act as a redundant pump for either chiller system.

u. Provide fuel oil or gas operated boiler-heating system designed to accommodate the largest heating load anticipated. Provide two circulation pumps, each designed for 100 percent of the total building-heating load. Design the pump controls to regulate the pumps as primary and secondary with each pump alternating as the primary.

2-5.5

Plumbing.

a. Provide drainage from the elevator pit.

b. Provide freeze proof hose bib at the exterior door to the tower cab catwalk and at the exterior of the ground floor of the ATCT.

c. In Fire Pump/Mechanical Room, provide floor sink and reduced pressure backflow preventer for domestic water system. Provide a duplex pump system and tanks to provide ample pressure for tower domestic system if the domestic system does not have adequate pressure.

d. On Mechanical Equipment floor, provide floor sink for equipment.

e. Provide floor sink for fire system maintenance and back flow preventer drainage.

f. Provide floor drain for condensation. Provide deionization system for ultrasonic humidifier in the Electronic Equipment Rooms and ATC Cab.

g. Provide house vacuum outlet at electronic equipment floors, break room, and tower cab. Design central vacuum system to have minimum velocity in piping of 4,500 ft. per minute (FPM). Hoses will be 50.8 mm (2 in) diameter with 150 SCFM, 7.62 m (25 ft) long with tool attachments rated for 3.5 in. Hg.

h. Provide floor-mounted mop sink, floor drain, hot water heater, and central vacuum system.

i. At briefing room: Provide kitchen-type sink and electric water cooler.

j. Floor drains are not provided on the outside deck. Deck will be sloped to exterior for positive drainage.

k. If a mechanical room is located under the tower cab, provide floor drain, deionized water system for the humidifier (if required by climate and water source), and hot water heater for the tower cab. Provide water closet lavatory.

l. Tower cab: Provide stainless steel sink, chilled water bubbler, insta-hot, kitchen-type faucet. Provide freeze proof wall hydrant on catwalk. All pipe routings between the roof and tower cab floor will be routed in rear structural mullions.

m. Roof tower cab: Provide roof drain and overflow roof

n. Drain to storm drain. All pipe routings between the roof and tower cab floor will be routed in rear structural mullions. Note:

“rear” is defined as the mullions adjacent and above the cab stairwell.

These two mullions are exposed during initial construction. The front mullions should be reserved as spares for future expansion to the greatest extent possible.

2-5.6

Design Dead Loads

a. Dead loads are defined as the weight of all permanent structural and nonstructural components of the building, such as walls, floors, roofs, ceilings, finishes, stairways, and fixed service, mechanical, and utility equipment, including forces caused by prestressing.

b. In estimating dead loads for the purposes of the structural design, the actual weight and materials in construction will be used.

c. The weights of all partitions will be considered as dead loads, and will be estimated in accordance with the partition layouts shown in the design documents. In the absence of definitive (non-loadbearing) partition layouts, a unit value of 0.96 kn/m2 (20 psf) on the floor area will be used in the design.

2-5.7

Design Live Loads

2-5.7.1

Roof Loads

a. Snow Load: Per UFC 1-200-01, Design: General Building

Requirements or applicable local codes, whichever is more stringent.

b. Roof Live loads per UFC 1-200-01.

c. Antenna dead load, 0.24 Kn/m2 (5 psf) with 12 mm (1/2 in) radial ice.

2-5.7.2

Floor Loads

Table 1 Floor Loads

AREA ENGLISH METRIC

Tower Cab Floor 150 PSF 7.2 Kn/m2

Office Areas 100 PSF 4.80 Kn/m2

Restrooms 50 PSF 2.40 Kn/m2

Lo…