Mark F. Nagata, PSP

Biography

Nagata holds a B.A. in Economics from the University of Pennsylvania, the PSP (Planning & Scheduling Professional) credential, and is a Certified Construction Documents Technologist through the Construction Specifications Institute. He is a Director at Trauner Consulting Services, Inc. (Philadelphia, PA). His work covers schedule delay analyses, inefficiency analyses, and the calculation of damages, using critical path method (CPM) scheduling. He has qualified as an expert witness and testified on delay, cost, damages, and wrongful-termination issues, with litigation support work including expert reports, written testimony, interrogatory responses, and deposition preparation. Publications: co-author of "Construction Delays, Third Edition"; co-author of a chapter on alternate-project-delivery claims in "Construction Contract Claims, Changes, and Dispute Resolution"; and a contributing author to AACE International's Recommended Practice No. 29R-03 for Forensic Schedule Analysis, specifically on "Contemporaneous Period Analysis and Contemporaneous Schedule Analysis." He also writes technical articles for industry publications. He is a certified Federal Highway Administration instructor and has presented more than 100 seminars, webinars, and construction claims-related presentations, nationally and internationally. His project experience spans bridge, highway, transit, healthcare, high-rise, and energy projects ranging from small jobs to multi-billion-dollar scale.

Credentials & Certifications

• PSP

Fee Schedule

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Related Reading

• How to Vet an Expert Witness: A Qualifications Checklist
• The 2026 Expert Witness Fee Guide

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