Assessing the Vulnerability of New Jersey s Transportation System to the Impacts of Climate Change

Transcription

1 Assessing the Vulnerability of New Jersey s Transportation System to the Impacts of Climate Change Jeffrey Perlman, AICP, PP, LEED AP, Principal Planner North Jersey Transportation Planning Authority

2 Project Goals Assess the vulnerability of NJ s transportation system to the affects of climate change Test FHWA Conceptual Model Build capacity among State agencies to analyze climate data and assess vulnerability Assist Counties and Municipalities in assessing their own vulnerable infrastructure and climate adaptation planning

3 Project Study Area NJTPA DVRPC SJTPO

4 FHWA Conceptual Model Climate Information Existing lnventor.. s Gather climate information (observed and projections) Existing data sets existing prlorltih, evaluation tool& lhi important Low llk lif'ioodl lowmetjnltudt Risk Monitor and revisit as thourc s ahow + Low vulntjabllhy High likelihood/high magnitude High llktllhoodllow magnhude l ow ll'kellhoodjhigh magnhude Outside ol scope ol RISk Assessmerl plot Monitor and revisit as resources allow ~ low ritk High or.,_ ldenllfy, analyh,and prioritize medium _,... ritk adaptation options

5 Inventory of Assets & Criticality Develop Inventory of Assets Roadways (from the CMS network) Bridges Passenger Rail (Amtrak & NJ TRANSIT) Freight Rail (NS and CSX, class 3) Airports Wetlands Tunnels (Route 29 and Atlantic City Marina) Determining Critical Assets Roadways & Bridges Evacuation Routes Access to Jobs Volumes Passenger Rail All Passenger Rail is Deemed Critical Freight Rail Class-1 Very Critical Class-2& -3 Less Critical

6 Determining Climate Impacts Climate Threats Sea Level Rise and Storm Surge Impacts Temperature and Precipitation Inland flooding impacts Scenario Development Three GHG Emissions Scenarios: Low, Medium, & High Projected climate impacts for 2050 and 2100 Collected historic weather data from NJ weather stations Threshold of Analysis Temperature Days above 95 degrees Precipitation Max within a five day period Drought Number of consecutive dry days Cold/Frost Number of frost days

7 Climate Change Projections select stations and emissions scenarios Av. Max Tern Station Name Baseline Baseline AlB 2100 Baseline NEW BRUNSWIC 3 SE ATLANTIC CITY INTL AP Baseline and Pro ected for Select Stations from Avera Grids above 95F Consec. d Baseline AlB 2100 Baseline AlB 2100 Baseline

8 Vulnerability Analysis Data Inputs Transportation Network Roadway Rail LiDAR (Digital Elevation Maps) Climate Projections Sea Level Rise and Storm Surge Temperature and Precipitation Inland flooding impacts Outcomes Flooding of Transportation Assets Roadways Passenger Rail Freight Rail Climate Extremes More days above 95 F Increased storm intensity Fewer frost days

9 Determining Infrastructure Vulnerable to Sea Level Rise and Storm Surge Utilized three global sea level rise (SLR) scenarios -.5, 1, and 1.5 meters Applied high-resolution LiDAR data for ground elevations Obtained local subsidence data from NJDEP Projected SLR and storm surge impacts for 2050 and 2100 for each SLR scenario SLOSH Modeling to determine storm surge impacts from a Category 1 Hurricane

10 Highways Potentially Vulnerable to Sea Level Rise & Storm Surge medium GHG scenario for 2100

11 Highways Potentially Vulnerable to Sea Level Rise & Storm Surge medium GHG scenario for 2100

12 Determining Infrastructure Vulnerable to Inland Flooding Estimated potential changes in peak 100-year storm (1% annual storm event) Used climate change outputs as inputs for analysis Frost days Dry days Rainfall Same timeframes and emissions scenarios for 2100 Estimated changes to impervious coverage due to population growth Used updated Digital Flood Insurance Rate Maps from FEMA

13 Rail Infrastructure Potentially Vulnerable to 1% Storm Event Medium GHG scenario for 2100 Legend - Passenger Rail Impacted Freight Rail Impacted - Ciass 1 - Class 2 and 3 Highway Network Criticality -- Exterme High Medium and Low ++++< PATCO Rail ++++< NJ TRANSIT Light Rail ++++< Freight Rail ++++< Passenger Rail Hunterdon -- Evacuation Routes Other Highways year Flood Extent Central Study Area ' County Boundaries D Surrounding Counties D Surrounding States Water Features

14 Recent Updates: Analyzing Flooding Impacts from Hurricane Irene Used TRANSCOM data recorded from Hurricane Irene transportation incidents Flooding Incidents from Hurricane Irene Coded incidents by location and duration State Highways and Major Arterials x Upto 1 day x 1-2 days x 2-3 days x More than 3 days

15 Next Steps: Apply Vulnerability Methodology to other areas of the NJTPA Conduct Case Studies for specific corridors Traffic Volumes Collect Incident data for other weather events Analyze Origin-Destinations along corridors Update floodplains from FEMA Develop Adaptation Strategies to critical transportation infrastructure

16 Further Reading Visit the NJTPA Climate Initiative for more information