More CSS Information From The Federal Highways
The federal government, through the Federal Highway
Administration (FHWA), is encouraging states to adopt
the CSS approach to transportation planning and design.
The FHWA implemented, in 1997, a pilot project for
CSS, using CSS techniques on transportation projects in
five states across the country: Kentucky, Utah,
Minnesota, Maryland and Connecticut. (Please visit the
FHWA's CSS website for further details.) All of
these states have since adopted the CSS approach in
their transportation decision-making.
Currently, 26 states either have adopted a CSS policy
or are developing one. (See the map below.) The FHWA has
set a goal of all states adopting the CSS approach by
The FHWA has published a guidebook for using the CSS
approach and techniques. View the Federal Highway
Administration's explanation and definition of CSS, "Flexibility
in Highway Design."
The following is a selection of case studies that
illustrate application of the principles and thought
process behind CSD/CSS. The case studies are
geographically diverse. They illustrate a wide range of
project contexts, from rural roads to urban streets.
They demonstrate that one can be context sensitive when
dealing with a freeway, an arterial, or a local road.