Context Sensitive Design
The Context Sensitive Solutions (CSS) is a collaborative, interdisciplinary approach that involves all stakeholders in developing a transportation facility that fits its physical setting and preserves scenic, aesthetic, historic, and environmental resources while maintaining safety and mobility. CSS is an approach that considers the total context within which a transportation improvement project will exist. For more information, visit the new CSS webpage.
Surface Utility Engineering
For many years, the inability to obtain reliable underground utility information has been a troublesome problem for highway designers in the United States. Now, there is a solution—subsurface utility engineering.
Pedestrian and Accessible Design
The Office of Program Administration is concerned with the design of the pedestrian environment in the public right-of-way for individuals with disabilities. Curb cut ramps for wheelchair users have been required at pedestrian crossings on Federal-aid projects for many years. The Department of Justice and the Department of Transportation (USDOT) have adopted the Americans With Disabilities Act Accessibility Guidelines (ADAAG) as standards. These accessibility standards currently only apply to buildings and sites.
Material Technology Research
FHWA is constantly looking for new materials and methods to improve the quality of the Nation's highway system. The Agency's efforts involve in-house and contract-sponsored research on areas such as bridge coatings, asphalt concrete and asphalt binders, portland cement concrete, high-performance materials for bridge construction, and waste and byproduct materials
Improving pavement performance is a complex and ongoing challenge. The pavement research teams in the Office of Infrastructure Research and Development (R&D) are working to address this challenge through a combination of staff and contractor R&D. Staff research is conducted in the laboratories at the Turner-Fairbank Highway Research Center (TFHRC). Contract research is conducted by a broad array of consultants, academic institutions, and private industry research organizations.
The mission of FHWA's Office of Asset Management is to provide leadership and expertise in the systematic management of highway infrastructure assets. The Office has three primary responsibilities:
- Provide national leadership in asset management principles for highway program administration.
- Develop asset management policies for pavement, bridge, and system preservation.
- Partner with the American Association of State Highway and Transportation Officials (AASHTO), additional FHWA offices, and others to conduct nationwide programs.
Bridge Technology and Asset Management
The National Bridge Inventory shows that more than 480,000 bridges and 110,000 tunnels and culverts serve U.S. highways. The average age of existing bridges is 42 years. In the coming decades, new bridges will replace many of these spans, but in the meantime, bridge owners need cost-efficient ways to maintain and preserve the existing bridges until they are rebuilt.
Future stewardship and preservation will require new research and technology, and innovative tools, strategies, and management practices. The transportation community also must provide breakthroughs in technologies for quickly repairing and rehabilitating bridges to minimize the duration and public impact of work zones. Other research needs include technologies for detecting the conditions of bridge decks at highway speeds and methodologies to assess the conditions of concrete decks with overlays. Finally, improved modeling for life cycle cost analyses could lead to cost-effective strategies and techniques for preventive maintenance that extend and optimize service life.