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Assistant Secretary for Research and Technology

In This Section

Engage With Us

HASS COE partners throughout USDOT, academia, and industry:

USDOT Operating Administrations: We are dedicated to serving the various Operating Administrations within the USDOT. If you are part of an Operating Administration or a specific mode of transportation within USDOT, we...

What We Offer

HASS COE serves as a pivotal hub within the USDOT, concentrating expertise on automation to ensure the safety of highly automated systems. Our mission is to integrate all of the USDOT alongside government, academic, and industry partners to conduct essential research. This collaboration aims to...

Huafeng Yu, Ph.D.

Huafeng Yu, Ph.D. Senior Scientist, HASS COE huafeng.yu@dot.gov

Dr. Huafeng Yu is a Senior Scientist at the USDOT Highly Automated Systems Safety Center of Excellence (HASS COE) specializing in automation, artificial intelligence (AI), and robotics. Previously,...

Sarasina Tuchen

Sarasina Tuchen Senior Scientist, HASS COE (Retired Emeritus)

Sarasina Tuchen was a Senior Scientist at the USDOT Highly Automated Systems Safety Center of Excellence (HASS COE) specializing in advanced aviation technologies, integration, and interoperability....

Steve Sill, P.E., PMP

Steve Sill, P.E., PMP Senior Scientist, HASS COE steve.sill@dot.gov

Steve Sill is a Senior Scientist at the USDOT Highly Automated Systems Safety Center of Excellence (HASS COE) leading system architectures and standardization activities. Previously, at the USDOT...

Eric Raamot

Eric Raamot Senior Strategist, HASS COE (Former)

Eric Raamot was a Senior Strategist at the USDOT Highly Automated Systems Safety Center of Excellence (HASS COE). Previously, he spent 22 years as Chief Technology Officer and Vice President of Engineering at...

Ashley Nylen, PMP

Ashley Nylen, PMP Senior Strategist, HASS COE ashley.nylen@dot.gov

Ashley Nylen is a Senior Strategist for Surface Automation at the USDOT Highly Automated Systems Safety Center of Excellence (HASS COE), providing expertise in automated and emerging technology...

Wassim Najm, Ph.D.

Wassim Najm, Ph.D. Senior Scientist, HASS COE wassim.najm@dot.gov

Dr. Wassim Najm is a Senior Advisor at the USDOT Highly Automated Systems Safety Center of Excellence (HASS COE) specializing in safety verification and validation of highly automated...

Daniel LeMaster, Ph.D.

Daniel LeMaster, Ph.D. Senior Scientist, HASS COE daniel.lemaster@dot.gov

Dr. Daniel A. LeMaster is a Senior Scientist at the USDOT Highly Automated Systems Safety Center of Excellence (HASS COE). He specializes in sensors and perception, focusing on cross-modal...

Mubassira Khan, Ph.D.

Mubassira Khan, Ph.D. Senior Scientist, HASS COE mubassira.khan@dot.gov

Dr. Mubassira Khan is a Senior Scientist at the USDOT Highly Automated Systems Safety Center of Excellence (HASS COE) specializing in artificial intelligence (AI), machine learning (ML), and...