1Federal AviationAdministration

Federal AviationAdministrationRunway Incursion

PreventionAirport Design – AC 150/5300Change - 17

<Audience>

<Date>

Presented to: Eastern Region Annual Airport Conference

Hershey Conference

By: Khalil E. Kodsi, P.E. PMP

Date: April 4, 2012

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Runway Safety Objective

Minimize the likelihood of Runway Incursions:

Improve taxiway geometry Increase situational awareness Improve Operational use of taxiways

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Increase Situational Awareness

• FAA Engineering Brief No. 75 – Incorporation of Runway Incursion Prevention into Taxiway and Apron

Design – 11/08/07– http://www.faa.gov/airports/engineering/engineering_briefs/

• Change 17 to FAA AC 150/5300-13, “Airport Design”– Improve Taxiway Geometry:

“3 – Node” taxiway intersection Taxiway/ Runway interface Entrance Taxiways

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“3-Node” Intersection

• Multiple intersecting angles of: – 30, 45, 90 degrees from the traveling taxiway

– Optimize fillet designs

– Bring airfield signage closer

• “Right Angle” entrance taxiway - best visual perspective – View aircraft traffic in both directions

– Optimum pilot orientation for viewing taxiway signage

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Standard Intersection DetailsW

L

W

L

TAXIWAY CL

LTAXIWAY C

L

W

L

W

W

L

W

CL

Figure 4-1a

= 30°, 45°, or 90°

Figure 4-1b

Figure 4-1c Figure 4-1d

(c) Taxiway intersection exceeds "3-node" concept

APRON

TAXIWAY J

TAXIWAY P

TAX

IWA

Y N

TAX

IWA

Y P

TAXIWAY C

4

RUNWAY

RU

NW

AY

BOARDINGAREA D

TAXIWAYJ4

TAXIWAY

B4

TAXIWAY K

TAXIWAY J5

Avoid This!

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Taxiway / Runway - Interface

• Optimum design is right-angle– No less than 45 degrees

– Exception for High Speed Exits

• Not Recommended:– Y-shaped taxiway crossing

– Taxiway crossing a High Speed exit

– Taxiway connecting to V-shaped runways

– Aligned taxiway (Prohibited)

– Direct access from a ramp/ terminal to the runway

– High-speed exits leading directly onto another runway

(d) Taxiway intersecting two or more runways

APRON

RUNWAY

TA

XIW

AY

J5

Avoid This!

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Hot Spots

7

AP

RO

N

TA

XIW

AY

A

TA

XIW

AY

R

TA

XIW

AY

R

TA

XIW

AY

P

(a) Taxiway crossing high-speed exit andWide throated runway entrance

RU

NW

AY

RUNWAY

TAXIWAY J

TAXIWAY K

(b) Extra-wide throated taxiway without

TERMINAL APRON

N2

N3

TA

XIW

AY

TA

XIW

AY

directly to parallel taxiways and runways"No Taxi" islands leading from the apron

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Hot Spots

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9

RUNWAY

TAXIWAY C-1 TAXIWAY C-2 TAXIWAY C-3

TAXIWAY D-2

TAXIWAY D TAXIWAY D

RUNWAY

TAXIWAY H

(e) Aligned taxiway between two closely spaced runway ends

TAXIWAY D-1

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Hot Spots

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Entrance Taxiway

Avoid wide expanses beyond taxiway design tables

Islands provide location for elevated signage

Standard orientation is 90 degrees

Standard length to accommodate longest fuselage

Curve “outer-edge” to mitigate wrong runway landing

TAXIWAY

RUNWAY

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Hot Spots

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(f) Two or more taxiway entranceslacking "No Taxi" islands

36R

TA

XIW

AY

HF

RU

NW

AY

TAXIWAY WP

TAXIWAY WQ

TAXIWAY WR

TA

XIW

AY

HF

R

(g) "Y" Shaped taxiway crossing a runway

APRON

TAXIWAY A

TAXIWAY

TAXIWAY

TAX

IWA

Y C

N

P

RU

NW

AY

RU

NW

AY

TAXIWAY P

TA

XIW

AY

N

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Improve Taxiway Operational Use

Avoid using runways as taxiways Use taxiing strategies to reduce active runway

crossing Correct runway incursion “Hot Spots”

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Change – 17 (Highlights)

• Taxiway Dimensional Standards – Group VI: (taxiway wonder study – EB80 )– Taxiway width is reduced from 100 feet to 82 feet– Taxiway edge safety margin is reduced from 20 feet to 15 feet

• Computer Program. Appendix-11 has been deleted including all references throughout AC.

• “Wind Rose” analysis tool has been added to Airport GIS website

• Appendix – 16 “New Instrument Approach Procedures” – Changes in tables and footnotes to clarify requirements based on Appendix 2 (TERP)

• The use of OFZ criteria as the basis to justify a reduction in runway to taxiway separation standards is not allowed.

• Taxiway geometry enhancement to minimize Runway Incursions.

• Appendix 15, Transfer of Electronic Data - Deleted. Guidance has been superseded by Airports GIS.

• Chapter 4, Table 4-2: Deleted lower section of table dealing with judgmental oversteering.

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Questions

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