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Customer satisfaction has become one of the primary drivers for the success of an airport, and restrooms and ancillary facilities often provide the first and last impression of a destination. The real challenge for airports is to provide restrooms with enough space for people to move around in and offer secure, clean, and dry places for their belongings.

The TRB Airport Cooperative Research Program's ACRP Research Report 226: Planning and Design of Airport Terminal Restrooms and Ancillary Spaces provides a thoughtful, step-by-step process to help airport industry practitioners plan, design, and implement terminal restroom and other ancillary amenity projects. It is an updated and expanded version of ACRP Report 130: Guidebook for Airport Terminal Restroom Planning and Design and reflects the latest thinking in this quickly evolving topic.

Supplemental materials to the report include:

Appendix A: Component Comparison Matrix

Appendix B: Existing Restroom Evaluation Forms

Appendix C.1: Case Studies—Restrooms

Appendix C.2: Case Studies—Amenities

Appendix D.1: Stakeholder Outreach—Restrooms

Appendix D.2: Stakeholder Outreach—Amenities

Appendix E: Surveys

Appendix F: Restroom Design Guidelines/Standards Sample

Appendix G: Restroom Standard Operating Procedures Sample

Appendix H: Bibliography

Appendix I: Glossary

Tables 4-1 & 4-2 Worksheets

Table 4-3 Worksheet


Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2021. Planning and Design of Airport Terminal Restrooms and Ancillary Spaces. Washington, DC: The National Academies Press.

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Publication Info

120 pages |  8.5 x 11 |  DOI:

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