A New Approach to Highway Design
Think of it as highway design with a twist. For States
practicing context sensitive design (CSD), the goals of ensuring safety
and mobility when designing and building a road are enhanced by the
aim to preserve environmental, community, scenic, and historic resources.
Key to the context sensitive design approach is early and continuing
stakeholder involvement.
The initial impetus for CSD came from the 1991 Intermodal
Surface Transportation Efficiency Act. CSD was also encouraged by the
1995 National Highway System Designation Act. Following a 1998 CSD workshop
on "Thinking Beyond the Pavement" hosted by Maryland State
Highway Administration (SHA), in cooperation with the American Association
of State Highway and Transportation Officials (AASHTO) and the Federal
Highway Administration (FHWA), Connecticut, Kentucky, Maryland, Minnesota,
and Utah agreed to serve as pilot States for implementing the CSD principles
developed at the workshop. FHWA's Federal Lands Highway Office also
joined the pilot program.
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| A CSD approach made reconstruction of Kentucky's
Paris Pike a reality after a 20-year delay. |
Since the 1998 workshop, the pilot States and others have
made great strides in using a CSD approach. In Kentucky, for example,
all highway projects follow CSD principles. "It has become the
norm rather than the exception," says Bill Gulick of the Kentucky
Transportation Cabinet. The CSD principles include establishing a multidisciplinary
team to plan projects; maintaining open and continuous communication
with all stakeholders from the beginning of a project; and understanding
the landscape involved, the neighboring community, and the area's valued
resources before starting the engineering design.
Kentucky has developed CSD workshops and training courses,
with more than 1,000 employees trained to date. The training includes
a CSD construction program for engineers and construction inspectors
and a context sensitive solutions (CSS) workshop. The CSS workshop demonstrates
how to follow through with commitments made during the design process,
such as to protect wetlands or private property. "Sometimes commitments
are made in the design process that are lost, overlooked, or not communicated
during construction or maintenance," says Gulick. "The workshop
shows how to make a list of the commitments and note who made them,
when, and what a clear definition is of the commitments. Following through
on commitments helps to bring credibility to the agency involved."
A CSD approach to redesigning Euclid Avenue in Lexington,
Kentucky, meant involving neighborhood and special interest groups and
the public. The road serves both local traffic and regional commuters
and is used as a connector between the University of Kentucky campus
and residential areas. The Kentucky Transportation Cabinet initially
proposed turning the existing four-lane roadway into a five-lane road.
After holding public meetings, an alternative plan to design a three-lane
roadway with bike lanes was adopted, meeting the community's goal of
creating a safe pedestrian and bicyclist environment that would enhance
the quality of life surrounding the corridor. More information on this
project, as well as other CSD case studies from across the country,
can be found on the University of Kentucky Transportation Center Web
site at www.engr.uky.edu/ktc.
A CSD approach proved equally valuable to Kentucky's Paris
Pike reconstruction project. Reconstruction of this section of US 27
between Lexington and Paris became possible, ending a 20-year court
injunction, after the Kentucky Transportation Cabinet committed to involving
landscape architects, historic preservationists, and environmental specialists
in all aspects of project development so as to minimize disruption to
the surrounding areas.
The CSD concept is also applied to all Maryland SHA projects.
"To support the CSD concept, Maryland has created a pavement initiative
with four focus teams," says Wendy Wolcott of Maryland SHA. The
teams are:
- Organization and Policy-Addresses such issues as utilities and pedestrian
lighting.
- Project Development Process-Makes recommendations on improving
project development.
- Project Management Training-Developed a 3-day training program
open to all SHA employees and consultants.
- Community Involvement Team-Developed a community involvement handbook.
Several national events have introduced CSD concepts to
a broader audience. The "Context Sensitive Design: Transferring
Lessons from Our Collective Experiences" workshop, held in Missoula,
Montana, from September 5-7, 2001, drew attendees from 38 States and
South Africa. The workshop covered CSD case studies, techniques, and
challenges, as well as such topics as public involvement, landscape
design, and developing and managing projects.
 |
| The Paris Pike reconstruction project involved
landscape architects, historic preservationists, and environmental
specialists in all aspects of project development. |
An International Symposium on CSD was held in Seattle,
Washington, in May 2002. Attendees learned about CSD practices in Canada,
Europe, and the United States, including how The Netherlands brings
the community into the design process early and often and how Canada's
flexible road design approach enhances the affordability and constructibility
of projects, while addressing environmental and stakeholder concerns.
Copies of the symposium presentations can be obtained from Seppo Sillan
at FHWA, 202-366-1327 (email: seppo.sillan@fhwa.dot.gov).
FHWA's Federal Lands Office is developing a CSD course
based on Federal Lands' CSD practices and the State CSD best practices,
as reported in the National Cooperative Highway Research Program Project
15-19 report, Application of Context Sensitive Design Best Practices
Toward Producing Context Sensitive Solutions. "We hope to have
a pilot course by next fall," says Hala Elgaaly of the Federal
Lands Office.
Increasing the number of States that have adopted CSD/CSS
approaches to project development is one of FHWA's vital goals. "A
focused effort will be made to provide training, best practices guidance,
case studies, and other information to assist our field offices and
the States in understanding the concept and philosophy behind CSS and
CSD and successfully implementing them," says Sillan.
For more information on CSD activities in Kentucky or
Kentucky's training workshops, contact Bill Gulick at the Kentucky Transportation
Cabinet, 502-564-3280 (email: bill.gulick@mail.state.ky.us) or Jerry
Pigman at the University of Kentucky Transportation Center, 859-257-4513
(email: jpigman@engr.uky.edu).
For more information on Maryland's initiatives, contact Wendy Wolcott
at Maryland SHA, 410-545-0365 (fax: 410-209-5010; email: wwolcott@sha.state.md.us).
For general information on CSD, contact Seppo Sillan at FHWA, 202-366-1327
(email: seppo.sillan@fhwa.dot.gov)
or Harold Peaks at FHWA, 202-366-1598 (email: harold.peaks@fhwa.dot.gov).
Information is also available on FHWA's and AASHTO's CSD Web site at
www.fhwa.dot.gov/csd/index.htm.
To learn more about FHWA's Federal Lands CSD work, contact Hala Elgaaly
at FHWA, 703-404-6233 (email: hala.elgaaly@fhwa.dot.gov).
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Articles in this issue:
Maturity Meters: A Concrete Success
A New Approach to Highway Design
A Hydraulics How To
Foamed RAP Makes the Grade in Louisiana
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