Niles joins HNTB as senior project manager
Federal transit expertise will benefit planning and delivery of mega infrastructure programs in the region.


Mark Niles, AICP, joined HNTB Corp. as senior project manager and associate VP, based in Washington, D.C. His responsibilities include program management, business development, technical quality oversight and project delivery.
Niles has 30 years of transit-planning experience and an extensive background in the mid-Atlantic. His experience includes projects and programs for the Washington Metropolitan Area Transit Authority, DC Streetcar and many other transit and rail, bus and paratransit planning projects across the U.S.
Prior to joining HNTB, Niles served as associate vice president for another consulting firm. In this role, he served numerous regional projects, including as program manager for the WMATA on-call planning contract, project manager for the Federal Transit Administration New Starts/Small Starts land use reviews, and Metrobus market and effectiveness studies.
Niles earned a Master of Business Administration from Rollins College, a Master of Arts in Urban and Regional Planning from the University of Iowa, and a Bachelor of Arts in Geography from State University of New York at Plattsburgh.
More Management

METRO Opens Submissions for 2026 Motorcoach Awards
Nominations are now being accepted for METRO Magazine’s Operator of the Year and Innovative Operator of the Year awards.
Read More →
New York MTA Advances Final Contract for Second Avenue Subway Expansion
Contract Four is the largest in the Second Avenue Subway Phase 2 project and includes construction of station infrastructure, tracks, and signals for the subway expansion, MTA officials said. Work on Contract Four will begin in 2027.
Read More →
Transit Agencies Highlight Safety Gains at National Summit
Leaders from 15 major transit systems shared crime-reduction results and safety initiatives while discussing the role of continued federal support.
Read More →
NITA Names New Leadership, Expands Reduced-Fare Program at First Board Meeting
The new regional transit authority appointed its first board chair and interim executive director while extending reduced fares across CTA, Metra, and Pace for eligible riders.
Read More →
Beyond the Checklist: A Structured Approach to Transit Maintenance
Reliability-Centered Maintenance helps transit agencies move beyond routine checklists to focus limited resources on the assets and failures that have the greatest impact on safety, reliability, and service.
Read More →
APTA 2026 Nominating Committee Selects Leadership Slate, Names Chair and Vice Chair Nominees
Leadership changes will help shape the association’s priorities and its representation of the transportation industry during the 2026–2027 term.
Read More →
DART Launches Major Security, Fare Enforcement Initiative
The 90-day demonstration will deploy coordinated security teams at five light rail stations while testing controlled access and gathering data to guide future investments.
Read More →Advancing Fare Collection Through Technology and Innovation
Learn about delivering 1300 gates at 91 stations while managing fare evasion. Explore the large scale deployment, solution customization and real-world results that affect the region. Prepare for deployment in your region now.
Read More →
Game Day in Motion: Moving Millions During the 2026 World Cup
Between packed transit stations and team motorcoaches, see how agencies and operators across North America tackled the transportation demands of the 2026 FIFA World Cup.
Read More →
Surface Transportation Extension Averts Shutdown, Leaves Transit Funding Gap
The stopgap keeps federal transportation programs moving, but missing advance funding could complicate the transit and rail projects agencies are planning next.
Read More →
