Traffic Impact Analysis Methodology for Comprehensive Plan

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The Comprehensive Plan –
Key to Concurrency
GROWTHMANAGEMENT
Photo: Ragan Smith Inc.
What is a Comprehensive Plan?
• To guide the growth of a community over a
10 to 20 year period
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• Contains 8 elements that should be
consistent and coordinated
– Transportation
– Land Use
– Water, Sanitary Sewer, Drainage
– Capital Improvement
– Parks and Recreation
– Conservation
– Recreation, Open Space
– Housing/Intergovernmental Coordination
What is a Comprehensive Plan?
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• Land Development Regulations should be
developed to implement the Comprehensive Plan
• Comprehensive Plan is adopted by ordinance and
amended by ordinance
• Amendments can only be done twice per year
(Excluding the Capital Improvements Element)
Comprehensive Plan
(Broad)
Land Development Regulations
(Specific)
How Does the Comp Plan Address Concurrency?
Concurrency
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• Clarified the ties
between concurrency
and Capital
Improvements
Capital Improvement
Programming
Financial Feasibility
Comp Plan Amendments
• 9J-5.002 (2) Comprehensive Plan
Amendments must be accompanied by
data and analysis to demonstrate
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– “the scale of public services that the local
government provides or is projected to provide as it
relates to the level of capital improvements
planning required”
Photo: Ragan Smith Inc.
Plan Amendments
• All comp plan amendments
must provide a traffic analysis
to demonstrate …
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–
adequate transportation
facilities to accommodate
growth
• Non-DRI plan amendments
• Level of detail is still uncertain!
Source: Traffic
Engineering
Consultants, Inc.
What would you do?
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Significance and Adversity
• No significance test as in DRIs
• Identify and mitigate for adverse
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segments
• Programmed improvements for short- term
• Planned improvements for long- term
Example of how mitigation could be calculated
without significance test
New gary slide
The CUTR Report Status ??????
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• Final review and
approval 2007??
From the Draft CUTR Report
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• Impact area defined as each roadway
segment included in CMS where project
trips are:
– equal or greater than 3% of the LOS C
max service volume of the segment,
• up to a distance of 5-miles
• At densities and intensities identified on Future
Land Use Map (FLUM)
• Short-term analysis (5 years) and
• Long-term analysis (at least 10 years)
Cumulative Analyses
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• Three or more FLUM amendments submitted during the
same cycle affecting similar transportation links (DRAFT)
• Trip generation (calibrated to ITE rates) provided for all
amendments
• Plots of traffic distribution
• Background growth with project traffic added
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