First Name
Last Name
Email (required)
I agree to receive emails from the National Academies (required)

We respect your privacy and will never share your information.

Search this publication

Front Matter i-vii
ACRP Report 51 Risk Assessment Method to Support Modification of Airfield Separation Standards 1-1
Transportation Research Board 2011 Executive Committee 2-2
Risk Assessment Method to Support Modification of Airfield Separation Standards 3-4
About the National Academies 5-5
ACRP Project 04-09 Panel 6-5
Author Acknowledgments 6-6
Foreword 7-7
Contents 8-9
Summary 10-10
Chapter 1 - Background 11-10
Introduction 11-10
Project Goals 11-10
Major Challenges Associated with Airfield Separations 11-11
FAA Modification of Standards 12-12
Chapter 2 - Airfield Separation Rationale 13-12
FAA Rationale 13-16
ICAO Rationale 17-20
Chapter 3 - Data for Modeling Aircraft Deviations 21-20
Airfield Lateral Deviation Studies 21-20
Veer-Off Accidents and Incidents 21-21
Aircraft Veer-Off Database Organization 22-22
Normal Operations Data (NOD) 23-23
Aircraft Data 24-24
Chapter 4 - Methodology Approach 25-24
Taxiway and Taxilane Deviation Modeling 25-29
Runway Deviation Modeling 30-36
Chapter 5 - Validating the Methodology 37-36
MOS Case Studies 37-36
MOS Survey 37-36
Methodology Applied to MOS Cases 37-39
Chapter 6 - Conclusions and Recommendations 40-39
Major Achievements 40-40
Limitations 41-40
Recommendations for Future Work 41-42
Glossary of Acronyms 43-44
Definitions 45-45
References 46-47
Appendix A - Risk Assessment Methodology 48-87
Appendix B - Collision Risk Model 88-88
Appendix C - Key Studies on Aircraft Deviation 89-89
Appendix D - List of Veer-Off Accidents and Incidents 90-90
Appendix E - Sample of Normal Operations Data 91-91
Appendix F - Aircraft Database Summary 92-100
Appendix G - Summary of FAA/Boeing Taxiway Deviation Studies 101-101
Appendix H - Analysis of MOS Cases 102-130
Abbreviations used without definitions in TRB publications 131-122

Log In

Former MyNAP users: You'll need to reset your password on your first login to MyAcademies. Click "Forgot password" below to receive a reset link via email. Having trouble? Visit our FAQ page to contact support.

Members of the National Academy of Sciences, National Academy of Engineering, or National Academy of Medicine should log in through their respective Academy portals.

Email (required)
Password (required)

Don't have an account?

Register

Email (required)
New password (required)
Retype password (required) Password must be at least 8 characters
I agree to receive emails from the National Academies
I accept the terms of use
terms of use

Thank You

Thank you for creating a MyAcademies account!

Enjoy free access to thousands of National Academies' publications, a 10% discount off every purchase, and build your personal library.

Forgot Password

Enter the email address for your MyAcademies (formerly MyNAP) account to receive password reset instructions.

Email (required)

Reset Requested

We sent password reset instructions to your email . Follow the link in that email to create a new password. Didn't receive it? Check your spam folder or contact us for assistance.

Reset Password

New password (required)
Retype password (required) Password must be at least 8 characters

Reset Password

Your password has been reset.

Verify email

Verify Your Email Address

We sent a verification link to your email. Please check your inbox (and spam folder) and follow the link to verify your email address. If you did not receive the email, you can request a new verification link below

Risk Assessment Method to Support Modification of Airfield Separation Standards (2011)

Chapter: FAA Modification of Standards

My Academies

Risk Assessment Method to Support Modification of Airfield Separation Standards (2011)

Chapter: FAA Modification of Standards