Professional Services
Transportation Consulting
Authority and compliance, backed by four decades of TDM expertise.

Strength In Advocacy
The Dulles Area Transportation Association started as a membership-based Association and although the organization has evolved into other areas of service, we remain an Association committed to providing value to our membership. When you join, you are gaining a seat at the table where regional transportation policy is shaped.
Who We Serve
As the designated Transportation Management Association for Western Fairfax County, DATA bridges public policy and private commute behavior. We provide proffer management and Transportation Demand Management strategies for the growth of the Dulles Corridor, working with planners, developers and local government to ensure transportation projects prioritize universal design and accessibility.
What We Offer
- Proffer Management
- TDM Compliance Strategies
- Traffic Demand Mitigation
- Development Compliance
- Regional Infrastructure Optimization