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Integrating Hazard Mitigation into MPO Long-Range
Transportation Planning
Charlotte County-Punta Gorda MPO
Mitigation Options
Allison Boyd, CSA
Dec. 10, 2009 PTAC Meeting
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Agenda Item Objectives
1) To review the range of potential mitigation
options for the Charlotte County
transportation system and to determine
which options to include in a current strategy
2) To consider approaches for including the
mitigation strategy in the Long Range
Transportation Plan and project prioritization
processes.
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The National Academies, 2008
← (also current hazards)
← Completed # 2.
← Now working on #3.
← Next step to be
accomplished for
upcoming PTAC meeting
discussions.
← End product for MPO
Review of what
we’re trying to
accomplish with
this project
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Project’s Potential Results
Leonard, K.J., J.H. Suhrbier, E. Lindquist, M.J. Savonis, J.R. Potter, W.R. Dean, 2008: How Can Transportation
Professionals Incorporate Climate Change in Transportation Decisions? In: Impacts of Climate Change and
Variability on Transportation Systems and Infrastructure: Gulf Coast Study, Phase I. A Report by the U.S. Climate
Change Science Program and the Subcommittee on Global Change Research [Savonis, M. J., V.R. Burkett, and J.R.
Potter (eds.)]. Department of Transportation, Washington, DC, USA.
& Current Natural Hazards
• Current Storm Surge
• Rainfall Flooding
• Erosion
• Hurricane Force Winds
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How to integrate
• Goals, objectives, and performance
indicators (LRTP)
Strategies to implement (LRTP)
Criteria for prioritizing projects (TIP)
Today’s purpose is to concentrate on
choosing a current strategy from the menu
of mitigation options
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Document in the LRTP
• Hazard Mitigation Chapter
or
• Insert in various sections and refer to
separate hazard mitigation report
and
• Goals and Objective integration
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Hazard Mitigation Section Outline
• Introduction
• Pilot Project Planning Process
• Hazard Vulnerability Assessment – Coastal Flooding: Storm Surge and Sea Level Rise (including
erosion)
– Rainfall Flooding
– Hurricane-Force Wind
– Wildfire
• Hazard Mitigation Options – Protection
– Accommodation
– Relocation/Retreat
• Hazard Mitigation Strategy
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Timeframes
• When to advance a specific mitigation
project depends on the hazard impact
timeframe in relation to the plan horizon
Leonard, K.J., J.H. Suhrbier, E. Lindquist, M.J. Savonis, J.R. Potter, W.R. Dean, 2008: How Can Transportation
Professionals Incorporate Climate Change in Transportation Decisions? In: Impacts of Climate Change and
Variability on Transportation Systems and Infrastructure: Gulf Coast Study, Phase I. A Report by the U.S. Climate
Change Science Program and the Subcommittee on Global Change Research [Savonis, M. J., V.R. Burkett, and J.R.
Potter (eds.)]. Department of Transportation, Washington, DC, USA.
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Threshold for mitigation/adaptation
Two general thresholds for infrastructure:
(1) Economic write-off, when replacement
costs less than repair (or in this case the
cost to mitigate if not full replacement required)
(2) When the condition of the infrastructure
component falls below a certain
standard. (i.e. frequency of interruption due to
flooding is unacceptable)
Jones, R.N., 2001: An Environmental Risk Assessment/Management Framework for
Climate Change Impact Assessment. Natural Hazards, 23: 197-230.
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Mitigation/Adaptation Options
• 3 basic choices (IPCC)
– Protect: protect the land from flooding
through “hard” or “soft” techniques (i.e. sea
wall vs. beach nourishment)
– Accommodate: operational strategies to deal
with periodic flooding or design options to
mitigate impacts
– Retreat/Relocate: abandon the infrastructure
or relocate it out of the risk zone
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Option considerations
• Hazards addressed
• Level of protection or risk reduction
• Lifespan (temporary or permanent solutions)
• Benefits (lowered maintenance/repair costs, decreased
delays from out of service)
• Cost
– Increased Cost to Mitigate
– Adjacent land impacts
– Environmental impacts
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Protection Options
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Accommodation Options
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Relocation/Retreat Options
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Accommodation
• Permanent inundation vs. temporary flooding
– Operational strategies to work around flooding or pump the water out would not be viable in case of permanent inundation
– Emergency management including pre-disaster evacuation and post-disaster repair may be acceptable options for temporary flooding depending on frequency and repair costs
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Retreat/Relocate
• Under extreme cases in the future, population
and land use shifts due to hazard impact and/or
cases where more than adequate redundancy
exists, a transportation component could be
abandoned
• Relocation may be considered if the costs of
alternate ROW acquisition and
reductions/changes in system performance are
less than the cost to accommodate or protect the
transportation component
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Considerations for Relocation
The relevant decision maker would have a general idea as to:
(1) how much replacement would cost;
(2) how long it would take;
(3) the economic resources available for replacement;
(4) public sentiment regarding replacement (or not);
(5) how essential the facility is to system performance; and
(6) whether or not plans exist for dealing with disruption of facility and/or system performance over the duration of the replacement time.
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Prioritizing Factors
• Plans for road work in future (mitigate
while other improvements being made)
• Do alternate routes exist for disaster
recovery - redundancy
• Level of usage of the roadway
• Degree of risk and expected level of
damages (how long out of service, cost of
repairs)
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Prioritizing Mitigation Projects
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Project Selection Criteria
Surface Transportation Enhancement Selection Criteria
Does the project serve a school? 10 points
Does the project serve a commercial area? 7 points
Will the project benefit transit in the future? 5 points
Does the project serve a park, recreational facility, or
community facility (e.g. library)?
5 points
Is the project associated with a functionally classified road? 5 points for arterial,
2 for collector
Does the project serve an urban service area? 5 points for infill, 2
for suburban
What is the population density around the project? (Population/square
mile/750)
Does the project provide improved facilities in an area that
has many bicycle/pedestrian accidents?
2 points per
documented
accident per mile,
capped at 10 years
of records
Does the project provide geographic continuity, complete an
earlier phase of the project, or complete a connection between
two existing or funded facilities?
10 points
Does the project mitigate against damage from disasters? 10 points
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Project Selection Criteria Landscaping Project Selection
What percentage of plants utilized are native?
100% 5 points
81% to 99% 4 points
61% to 79% 3 points
41% to 59% 2 points
20 % to 39% 1 point
0% to 19% 0 point
What percentage of the plants utilized are drought-tolerant?
100% 5 points
81% to 99% 4 points
61% to 79% 3 points
41% to 59% 2 points
20 % to 39% 1 point
0% to 19% 0 point
What percentage of the plants utilized are wind resistant?
100% 5 points
81% to 99% 4 points
61% to 79% 3 points
41% to 59% 2 points
20 % to 39% 1 point
0% to 19% 0 point
Does the landscaping incorporate wind-resistant urban design principles?
Yes 5 points
No 0 points