Title: Mark Taylor
1Federal Lands HighwayApproach to Context
Sensitive Solutions
Presented By Mark Taylor Federal Lands
Highway FHWA Environmental
Conference Arlington, VA June 2006
Commitment to Excellence
2Todays Topics
- Federal Lands Highway Program and Delivery
Approach - Perspective and Philosophy
- Typical CSS Applications in FLH
- Some Examples
- Current Activities and Initiatives
- Issues and Concerns
3Federal Lands Highway Program
- Facilitate public road access to and within
Federal Lands - Provide engineering and technical services to the
Federal land management agencies (FLMAs) and the
transportation community - Deploy new transportation technology
- Provide training and technical support
4FLH Approach to Delivery
- Through partnerships with each Federal land
management (client) agency - Mutual program responsibilities outlined in MOUs
with each client agency - Overall program is developed jointly
- Individual projects are prioritized and approved
by the client agency - Stewardship and oversight by FHWA
5FLH Partners/Customers
- National Park Service
- Forest Service
- Fish and Wildlife Service
- Bureau of Indian Affairs
- Department of Defense
- Native American Tribal Governments
6FLH Partners/Customers (contd)
- Other Agencies BLM, BOR, COE
- State DOTs
- Local Governments D.C., Towns, Counties
- FHWA Division Offices, Resource Center, RDT
7FLH Annual Program
- 75 Projects
- 800 Lane miles improved
- 35 Bridges improved
- 400 Million total expenditures
- 300 Million construction
- 100 Million non-construction, including
- 600 Internal work years
- 40 Million consultant and contract services
(planning, design, construction support, etc.)
8Challenges Facing FLMAs
- Increasing demands on the system
- Land management versus access
- Infrastructure and environmental complexity
- Publics expectation to be more informed,
involved with more input into decision-making - Expectation to find context sensitive solutions
- Requirement to maintain safe, economical,
sustainable, and technically sound facilities - Fiscal and budget constraints, rising
construction costs and budgetary impacts
9Opportunities
- Advancements in digital technology
- Integration of data and knowledge from diverse
sources and multiple media - Collaboration, data sharing, decentralization
- Communication media, speed, and coverage
- Leveraging advances in related industries
- Capability to better visualize, evaluate and test
design scenarios during development - Interdisciplinary, team culture and flexibility
10CSS Approach
- Outcome satisfies the purpose and need
- Explores alternatives that equally address goals
for safety, mobility, protection of the
environment, and reflect community values - Involves a collaborative, interdisciplinary
approach, and effective use of resources - Involves stakeholders, resource agencies and the
public as a part of the design team - Ensures that outcome provides safety and
mobility, and adds lasting value
11Why Does FLH Emphasize Context Sensitive
Solutions?
- Enables the organization to achieve its vision
- FHWA Vision Improving Transportation for a
Strong America - FLH Vision Create the best transportation system
the values of Federal and Tribal lands
12Perspective and Philosophy
- Long-standing partnerships with FLMAs
- Sensitivity to FLMA goals and values
- Joint Responsibility to Deliver Program
- Use expertise gained from partner agencies
- Share complementary knowledge skills
- National Perspective
- Partner with many agencies and State DOTs
- Broad geographical coverage
- Able to accommodate partner agency standards
- Retain Federal stewardship responsibility
13Typical CSS Applications
- Project Planning and Programming
- Project Development
- Environment
- Technical Services
- Project Management
- Construction
14FLH Application of CSS
- Interdisciplinary Team Approach
- Collaborative Decision-making involving all
Stakeholders and the Public - Balance Safety and Mobility Goals with Community
Values Environment - Flexible Application of Design Standards
- Primarily used in Design and Construction
limited use in Planning and Programming
15What FLH Emphasizes
- Establish interagency, multi-disciplinary team
based on project needs, purpose and scope - Use early public involvement, integrated with
scoping, to establish the purpose and need - Facilitate continuous communication and feedback
with partners and stakeholders - First, understanding the project context to guide
the evaluation of alternatives which address the
mobility and safety needs - Collaborative, participative decision-making
16Levels of Decision-making
- Expert-based
- Stakeholder-based
- Community-based
What Level Is Requested?
17Recommended Practices
- Verify the sound, factual basis for the purpose
and need - First listen to those who may be affected, before
proposing a design solution(s) - Be flexible to consider alternative,
corridor-specific design criteria that meets the
need - Understand the basis for design criteria, and how
it affects and addresses operational performance
and safety risk
18Recommended Practices
- Verify what is needed for collaborative
evaluation and decision-making - Be ready, willing, creative and innovative to
respond to local and environmental concerns - Progressively fine tune the details that result
in a better fit to the site conditions - Follow proven processes that attend to details
affecting quality, for all disciplines
19Improve the Design Process
- Ideas, analysis and criteria interact to create
the solution. - Advancing the vertices improves the process.
- Enhancing the vertices improves the solution.
Kanizsa Triangle the eye perceives a blank
upright equilateral triangle where none is
actually drawn
20Data and Performance
- Better data and tools needed for effective
engagement of stakeholders and public - Understanding the basis for design will result in
a higher level of performance - Facilities in sensitive environments face higher
demands for performance - Analysis, engineering, and construction all
should be accomplished with higher levels of
thinking, performance and quality
21Using Visualization to Support the CSS Approach
- Communicating the design process
22Why use Visualization?
- Promotes Context Sensitive Solutions
- Facilitates Involvement with Stakeholders and the
Public - Promotes Common Understanding
- Simulates the Proposed Facility
- How it Looks (End Product)
- How it Operates (Meets Needs)
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24FHWA and FLH Policy
- Legislative 23 USC 625 for most FHWA and FLH
programs - mandates conformance to AASHTO and/or
other FHWA-approved State DOT policies - FLH Program Manual and Interagency Agreements
(MOUs) sets FLH policy - FLH PDDM references FLH policy and establishes
FLH standard practices, guidance, and expected
design flexibility
25Highway StandardsUsed by FLH
- GenerallyAASHTO Green Book
- Policy on Geometric Design of
- Highways and Streets
- Federal Land Agency Standards
- State or Local Design Standards
- Tribal Government Standards
26AASHTO Green Book
Green Book Interstate Standards constitute the
design standards for NHS adopted by the FHWA
27CSS Road Standards
- Purpose and Function of the Road
- - Arterial? - Collector? - Local?
- - Special-Purpose?
- Level of Traffic
- - ADT? -Seasonal? -Design Vehicle?
- Balance Design Speed Roadway Width
- - With Purpose Function of Road
- - With Mobility and Safety Needs
- - With Community Environmental Values
28Some Examples
29Scoping Rehabilitate vs. Reconstruct
30FLH Design Techniques
- Curvilinear Alignment
- Lie lightly on the land
- Follow existing contours
- Flowing alignment, varying views
- Coordination of horizontal and vertical
- Spiral transitions at ends of curves
- Consistent, self-enforcing design speed
- Iterative reviews to optimize alignment
31Curvilinear Alignment
32Roadside Features
- Slope Treatments
- Rounded Top of Cut and Toe of Fill
- Warping at Transitions to Cut and Fill
- Roughening and Compounding
- Rock Sculpting and Ledging
- Ditches
- Rounded, Vegetated
- Masonry Lined (Stone or Brick)
- Paved with Curbing
- Aesthetic Curbs and Pedestrian Sidewalks
- Fences and Appurtenances which Blend
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34Aesthetic Traffic Barriers
- Weathering Steel W-beam
- Etched Galvanized Steel W-beam
- Steel-backed Timber Beam Guardrail
- Steel-backed Timber Log Guardrail
- Simulated Stone Concrete Guardwall
- Natural Stone w/Concrete Core Wall
- Crash Tested and Approved
35Mountable Curbs, Baltimore-Washington Parkway,
Maryland
36Structures that Blend
- Bridges
- Type, Span, Shape, Formwork, Finishing
- Accents, Veneers, Facades
- Culverts
- Shape, Material, End Treatment
- Retaining Walls
- Aesthetic Facing, Color, Texture
- Natural Materials
37Merced River Bridge, Yosemite NP, California
38Stone Masonry Arch, Blue Ridge Parkway
39Forehand Hollow Bridge, Natchez Trace Parkway
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43Foothills Parkway, Tennessee
44Environmental Enhancements
- Adjust roadway location away from critical and
sensitive areas - Restore drainage to original stream channels
- Replace existing culverts with natural bottom
culverts for fish passage - Add crossing structures sized for wildlife
- Restore existing barren slopes with native trees,
shrubs and grasses - Restore hydrology to natural conditions
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46Managing CSS Application
- What it costs?
- Lead time?
- Expectations?
- What are the constraints?
- Technical and support needs?
- Benefit of effort, cost, and lead time to produce
high value outcome
47CSS is Data-intensive
- Greater awareness/understanding of competing
goals and values - Knowledge of both the users needs and the
affected community (context) - Accurate traffic and crash data to quantify
safety and mobility needs - Precise surveys and mapping are needed to best
fit local conditions
48Impediments
- Human resistance to change
- Training and analytical tools
- Inconsistencies across the industry
- Aversion to additional risk and liability
- Lack of organizational support
- Adversarial compliance relationships
49What FLH wants to do better
- Better document existing FLHs best practices for
implementing CSS - Emphasize integration of CSS applications across
all disciplines, and in various phases of project
delivery - Provide guidance and training on CSS techniques
and applications (for all project types and cost
ranges)
50FLH CSS Initiatives
- NHI 3-Day Training Course
- Guanella Pass Lessons Learned video
- CSS Road Surfacing Selection Guide
- Update FLH Design Manual to deliver CSS approach,
across all disciplines - Update guidance and training on application of
flexibility in design - Comprehensive and accurate scoping (3R versus
3plusR versus 4R) - Promote 3D Visualization Tools
51Reference Information
- Federal Lands CSS Web Site
- www.fhwa.dot.gov/csd/fed.htm
Commitment to Excellence
- NCHRP Report 480
- A Guide to Best Practices for Achieving Context
Sensitive Solutions
- AASHTO Flexibility Guide
- A Guide for Achieving Flexibility in Highway
Design
52Summary
- Federal Lands Highway uses
- Context Sensitive Solutions process
- To deliver facilities which are
- Technically feasible and responsible
- In harmony with their environment
- Reflect community and natural values
- That satisfy user and stakeholder transportation
needs - Safety
- Mobility
53Thank You
Mark Taylor Design Discipline Leader FHWA
Federal Lands Highway 12300 West Dakota
Avenue Lakewood, CO 80228 (720)
963-3607 mark.taylor_at_fhwa.dot.gov