What's your fleet Administration Federal Aviation mix for … 4-States 2016 Fleet... · Federal Aviation Administration Introduction ... Design (Justification) – Justifies that

Presented to: By: Date:

Federal Aviation Administration What's your fleet

mix for design? (Hint: it's not the Airport Master Plan’s fleet mix)

4 States Airport Conference Brian M. Tompkins, P.E., C.M. State Airport Engineer Iowa Dan E. Wilson, P.E., M.S. Regional Paving Engineer August 30, 2016

Federal Aviation Administration

Introduction

• Developing fleet mix for design – Verifiable from actual data – Reasonable for airport – Appropriate for project

• Airfield Pavement Design – What FAA needs for review – Specifications, design alternatives, LCCA

• Q&A

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Planning vs. Design

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Planning vs. Design

• Planning (Forecast of Aviation Demand) – Estimates when development needed (5-10 years out) – Found in Master Plan, NEPA, Part 150 Noise Studies – Establishes airport dimensional standards, AIP eligibility

• Design (Justification) – Justifies that development which is needed now – Identifies critical design aircraft – Validates design details (fillet design, TDG, pavement

section); details that are NOT determined during planning

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Data Sources for Fleet Mix

• Planning, third party sources (see handout) • FAA’s TFMSC Database

– Traffic Flow Management System Counts • Free, public access

• IFR traffic going back to 2001

• Includes “blocked” flights not in 3rd party data

– Access at https://aspm.faa.gov/

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FAA’s TFMSC Database Output

• Report formats of HTML, Word, Spreadsheet (see 11x17 handout) – Each aircraft record includes

• Date aircraft operated • User, weight, and physical classes • Aircraft name (includes ICAO ident) • Business jet, Regional jet, and business “use” • Number of departures, arrivals, operations • Number of seats


Fleet Mix Table

• Recommended Table (see 11x17 handout) – Manufacturer, model – User class, engine type – Design standards (AAC, ADG, and TDG) – Annual Operations, growth rate – Weight, main gear type – Runway length – Identify critical design aircraft/family

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Critical Design Aircraft

• Justifies airport design standards proposed for the project.

• Conducts, or is expected to conduct, at least 500 operations annually at the airport.

• Can be a specific aircraft, a family of aircraft, or a composite of several aircraft.

• AC 150/5300-13A, ¶102.ff and ¶105.b/c and Order 5090.3C, ¶ 3-4

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Paving – Engineer’s Report

• Why do we see what we see in FAARFIELD and 5100. (If its out of the ordinary we expect to see an explanation)

• If deviating from Geotech report please state why, this should only be in rare occasions.

• If deviating from AC please state why, in most cases this will require a MOS.

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Paving – State Standards

• Use AC 150/5100-13B • This uses a different approach than 150/5320-6E • Usually results in thicker sections • <12,500 lbs. for all aircraft using that portion of

pavement. • Expect to see D-Cracking and ASR testing in state

standards. • State Standard is not Highway Specification.

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Paving – 5100-1 Form

• Project Description – Need more than “Taxiway D”. Need locations of work performed. Define the limits either by Lat and Long along centerline which is preferred over station numbers. Think in long term forensic data gathering, station numbers will change but Lat and Long should stay the same.

• Typical Sections – Cut and paste the cross section from the plans.

• Soil Analysis – If using the Geotechnical Report then attach it to the form as it says.

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Paving – FAARFIELD • Its not a black box! • If an airplane is in library please use it, do not combine

lighter aircraft unless this is a heavy airport. • Once 6F, FAARFIELD 1.41 will be released and this has

vehicle library and it will be expected to be used if vehicles control thickness.

• MTOW, should not use what is given in FAARFIELD. FAARFIELD always shows MTOW for aircraft. Look at performance charts for that aircraft and maximum RW length at that airport.

• Design life is set a 20 years, as of now cannot use anything else.

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Paving – Life Cycle Cost Analysis

• Follow example in AC 150/5320-6E, Appendix 1 • Should not be done on initial design report. • Only should be done when repair method has been

agreed upon with FAA Project Manager (Rehab [minor, major], Reconstruction.

• Should be done with recent numbers, its just a phone call away.

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Documents

What's your fleet Administration Federal Aviation mix for … 4-States 2016 Fleet... · Federal Aviation Administration Introduction ... Design (Justification) – Justifies that