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Home My Public Portal About20151208 TAC Meeting v2.pdfCARRYING CAPACITY TAC Meeting #1 December 8, 2015 City of Tybee Island MEETING AGENDA Scope of Project Review of Wave Ecology Report Data Gathering & Analysis SCOPE OF WORK Technical Advisory Committee Community Resources Inventory & Assessment Analysis of Community Resources Limitations Recommendations & Implementation Plan Coordination with Comprehensive Plan Process Scheduled to be completed in October 2016 WAVE ECOLOGY AND HIGHWAY 80 CHALLENGE STUDY 2011 Study Authors: Chatham County in partnership with the City of Tybee Island & CORE MPO Purpose: Develop strategies for addressing public safety concerns along the Highway 80 corridor Approach: Data collection and analysis through urban ecosystem planning with the input of key community leaders. STEERING COMMITTEE Russ Abolt Chatham County County Manager Jimmy Brown City of Tybee Island Tybee Emergency Management Coordinator Robert Bryson Tybee Island Police Department Police Chief Jason Buelterman City of Tybee Island Mayor Leon Davenport Chatham County County Engineer Wanda Doyle City of Tybee Island Council Member Robert W. Drewry Chatham County Director Public Works & Park Services Pat Farrell Chatham County Board of Commissioners County Commissioner Rochelle Ferguson Low Country Regional Transportation Authority Executive Director Anthony Gallo Savannah –Chatham Metro Police Department Sergeant of Police William Garbett City of Tybee Island Council Member Bill Greenwood Dafuskie Island Council Council Member Jonathan Hagan Tybee Island Police Department Captain of Police Ben Herron Savannah –Chatham Metro Police Department Captain of Police Chris Hutton Low Country Regional Transportation Authority Board Member Ethan Imhoff City of Tybee Island Director of Planning Michael Izzo Savannah –Chatham Metro Police Department Traffic Division Bethany Jewell Chatham County Personal Contract –Wave Ecology Study William Lovett Savannah –Chatham Metro Police Department Chief of Police Chantel Morton City of Tybee Island Better Hometown Coordinator Chad Reese Chatham Area Transit Executive Director C.L. Sasser Tybee Island Fire Department Fire Chief Brad Saxon Georgia Dept. of Transportation District 5 Diane Schleicher City of Tybee Island City Manager Clayton Scott Chatham Emergency Management Agency Director Teresa Scott Georgia Dept. of Transportation District 5 Patrick Shay Chatham County Board of Commissioners County Commissioner Tom Thomson Coastal Region MPO & Chatham –Savannah MPC Executive Director Wykoda Wang Coastal Region MPO Transportation Planner Joe Wilson City of Tybee Island Director of Public Works Paul Wolff City of Tybee Island Council Member KEY CONCEPTS Urban Ecology -school of thought seeks to understand the natural systems of urban/developed areas and the threats that face them Wave Ecology –Subset of Urban Ecology that acknowledges the stress fluctuating variables can place on the capacity of a community such as population changes (peak tourism) and the natural climate (tidal changes, sea level rise ). Carrying Capacity -The maximum population of species that can be sustained in their given environment. HUMAN APPLICATION OF CARRYING CAPACITY I = P x A x T I = Environmental Impact P = Population A = Affluence T = Technology Human carrying capacity is not strictly related to population size, but to many levels of consumption, which are in turn impacted by technology and the economy. Local governments have the opportunity to opportunity to impact these variables through regulatory and policy choices related to land use, infrastructure improvements, growth management, and the local economy. DATA ASSESSMENT Population 2000 Census data –Resident Population Tybee Tourism Count –Overnight Tourist Population Traffic Counts –Day Trippers Affluence 2002 Economic Census Services & Commodities –Employment Numbers 2000 Census –Per Capita income 2000 Census –Home affordability Mortgage payment > 35% of income DATA ASSESSMENT Technology Water & Sewer Housing Roads Bikeways Marinas Inter-Island Access Solid Waste Electricity Technology Data 2000 Census Traffic Counts Tidal data Parking study data ISSUES IDENTIFIED Traffic Congestion/Lack of Access/Mobility Issues During Special Events and Peak Tourism Incident/Accident (Stalled Vehicles on Highway 80) / Narrow Bridges Lack of Shoulders / Public Safety Lack of Parking Space During Special Events Emergency Situation and Evacuation SHORT TERM RECOMMENDATIONS 1.Install road signage to address special features related to safety concerns. 2.Establish a bus or shuttle service during special events and inter-island options during peak tourism periods. 3.Establish and maintain an ongoing bus/shuttle service through the Coastal Regional Commission. 4.Utilize signal timing and Intelligent Transportation Systems (ITS) during special events. 5.Utilize social media to disseminate information to the public. DATA GATHERING & ANALYSIS Water Withdrawal Wastewater Discharge Traffic Counts Short Term Rental Units Zoning WATER WITHDRAWAL 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 Ja n - 1 0 Fe b - 1 0 Ma r - 1 0 Ap r - 1 0 Ma y - 1 0 Ju n - 1 0 Ju l - 1 0 Au g - 1 0 Se p - 1 0 Oc t - 1 0 No v - 1 0 De c - 1 0 Ja n - 1 1 Fe b - 1 1 Ma r - 1 1 Ap r - 1 1 Ma y - 1 1 Ju n - 1 1 Ju l - 1 1 Au g - 1 1 Se p - 1 1 Oc t - 1 1 No v - 1 1 De c - 1 1 Ja n - 1 2 Fe b - 1 2 Ma r - 1 2 Ap r - 1 2 Ma y - 1 2 Ju n - 1 2 Ju l - 1 2 Au g - 1 2 Se p - 1 2 Oc t - 1 2 No v - 1 2 De c - 1 2 Ja n - 1 3 Fe b - 1 3 Ma r - 1 3 Ap r - 1 3 Ma y - 1 3 Ju n - 1 3 Ju l - 1 3 Au g - 1 3 Se p - 1 3 Oc t - 1 3 No v - 1 3 De c - 1 3 Ja n - 1 4 Fe b - 1 4 Ma r - 1 4 Ap r - 1 4 Ma y - 1 4 Ju n - 1 4 Ju l - 1 4 Au g - 1 4 Se p - 1 4 Oc t - 1 4 No v - 1 4 De c - 1 4 Daily Average and Maximum Water Withdrawal per Month Daily Average Daily Max Daily Ave. Permit Limit WATER WITHDRAWAL 0.74 0.76 0.78 0.8 0.82 0.84 0.86 2010 2011 2012 2013 2014 Annual Daily Average Annual Daily Average Linear (Annual Daily Average) WATER WITHDRAWAL –FUTURE PERMIT LIMITS 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2010 2011 2012 2013 2014 Annual Daily Average and Permit Limitations Annual Daily Average 2015 Permit Limit 2025 Permit Limit WASTEWATER DISCHARGE 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 Oc t - 1 2 No v - 1 2 De c - 1 2 Ja n - 1 3 Fe b - 1 3 Ma r - 1 3 Ap r - 1 3 Ma y - 1 3 Ju n - 1 3 Ju l - 1 3 Au g - 1 3 Se p - 1 3 Oc t - 1 3 No v - 1 3 De c - 1 3 Ja n - 1 4 Fe b - 1 4 Ma r - 1 4 Ap r - 1 4 Ma y - 1 4 Ju n - 1 4 Ju l - 1 4 Au g - 1 4 Se p - 1 4 Oc t - 1 4 No v - 1 4 De c - 1 4 Ja n - 1 5 Fe b - 1 5 Ma r - 1 5 Ap r - 1 5 Ma y - 1 5 Ju n - 1 5 Ju l - 1 5 Au g - 1 5 Se p - 1 5 Wastewater Discharge Flow Average Flow Ave. Permit Limit Flow Maximum Flow Max Permit Limit SOLID WASTE –RESIDENTIAL TRENDS 0 50 100 150 200 250 300 350 Solid Waste Disposal & Recycling Trends Solid Waste Recycling Linear (Solid Waste)Linear (Recycling) SOLID WASTE –NON -RESIDENTIAL TRENDS 0 20 40 60 80 100 120 140 160 Non Residential Solid Waste Trends MSW DPW MSW Lovell Recycle DPW Recycle Atlantic Linear (MSW DPW)Linear (MSW Lovell)Linear (Recycle DPW)Linear (Recycle Atlantic) POPULATION POPULATION -CENSUS Census Comps for Population 2000 2010 Percent Change Population 3,392 2,990 -11.85% HOUSING UNITS –CENSUS Census Comps for Housing Units 2000 Percent 2000 2010 Percent 2010 Percent Change Total Housing Units 2,696 --3,366 --24.85% Occupied Housing Units 1,568 58.20%1,360 40.40%-13.27% Owner -Occupied 1,078 40.00%918 27.30%-14.84% Long Term Renter -Occupied 490 18.20%442 13.10%-9.80% Vacant Housing Units 1,128 41.80%2,006 59.60%77.84% HOUSING UNITS –TYBEE STUDY 2009 Occupancy Occupancy Characteristic Tybee Study 2009 Census 2010 Units Percent Units Percent Occupied Units Owner Occupied 1,396 44.1%918 27.3% Long Term Renter 5 0.2%442 13.1% Vacant Units Short Term Renter 1,472 46.5%1,473 43.8% For Sale 125 3.9%123 3.7% Other 169 5.3%410 12.2% SHORT TERM RENTAL UNITS Rental Unit Type Number of Units Average Persons Per Unit Peak Rental Popluation Hotel 420 2 840 House 1,200 6 7,200 Campground 118 2.58 304 Total 1,738 10.58 8,344 SHORT TERM RENTAL OCCUPANCY Campground Mermaid Oceanfront Average Jan 25%25%15%22% Feb 33%25%35%31% Mar 73%75%65%71% Apr 86%90%50%75% May 78%75%50%68% Jun 93%99%90%94% Jul 97%99%98%98% Aug 55%75%80%70% Sep 61%50%50%54% Oct 70%40%38%49% Nov 45%25%25%32% Dec 33%25%15%24% TRAFFIC COUNTS 0 5000 10000 15000 20000 25000 30000 35000 Total Trips Month Average Weekend Day Average Peak Day HWY 80 TRAFFIC COUNT MAXIMUM R -2 ZONING ANALYSIS 55 Total Parcels R -2 ZONING ANALYSIS 51Developed SFR Parcels Estimated Population = 128 ( 51 x 2.5 ) R -2 ZONING ANALYSIS Greater than 6,750 Sq Ft = 19 Less than 6,750 Sq Ft = 36 Potential Population = 185 ( ( 19x5 ) + ( 36x2.5 ) )45% Increase R -2 ZONING ANALYSIS Less than 6,750 Sq Ft = 36 (Pop 90) Between 6,750-11,250 = 5 (Pop 25) Between 11,250-13,500 = 14 (Pop 105) Greater than 13,500 = 1 (Pop 10) Maximum Population = 230 80% Increase NEXT STEPS Additional Data? Additional Analysis? Next Meeting