Land Use and Transportation Scenario Analysis and Microsimulation 14 th TRB National Planning Applications Conference Columbus, OH 2013
SMART TRANSPORTATION ANALYSIS Project Need: How to quantify the benefits of Smart Transportation and Land Use Investments? Need a transferable process that will produce reasonable results statewide in a streamlined manner.
GOAL: EVALUATING MULTIPLE, DETAILED LAND USE AND INFRASTRUCTURE SCENARIOS Rural Traditional Suburban Neo-traditional Smart Growth Density 1 Unit/Acre 4 Units/Acre 8 Units/Acre 15 Units/Acre Net Units 10 Units 50 Units 75 Units 75 Units Transit None None Yes Yes Sidewalks None Partial Complete Complete Trails & Bikepaths Interconnected None None Partial Complete None 30% Cul-de-Sac Partial Grid Highly Connected
BACKGROUND: PENINSULA MODEL OVERVIEW Model Maintenance (Network, TAZ, & Count Update Utilities) Core Model (5 Step Travel Demand Model Equations) Single Network Processor GIS TAZ Land Use Layer Feature Models Air Quality Conformity EZPass Toll/Mode Split Model Build/No Build Model Statewide Evacuation Model Seasonal Tourist Model Junction Model TIS Model (Extra P s & A s) Subarea Model (GIS Network, Fratar Trip Table) Micro Model (GIS Network, Tax Parcel TAZ ) Outputs (Reports, GIS Files, Loaded Networks, etc) 4
BACKGROUND: DELDOT S PENINSULA MODEL Two Levels of Resolution Standard Resolution: 13,491 Links 2108 TAZs Enhanced Resolution: 177,211 Links 19,640 TAZs Can be applied using windowing process in GIS for a hybrid setup 5
LUTSAM (Land Use and Transportation Scenario Analysis and Microsimulation) 6 6
WHAT IS LUTSAM? LUTSAM is a modeling tool and process resulting from a collaboration between the Delaware Department of Transportation (DelDOT) and the State Smart Transportation Initiative (SSTI) at the University of Wisconsin Madison. LUTSAM tests land use alternatives along with multi-modal investments, by integrating GIS, land use, travel demand and microsimulation. 7
SSTI - MODELING PROCESS FLOW Land Use Scenario Development (LUTSAM) Travel Demand Modeling Sub Area Model Sub Area Microsimulation 8
9 LUTSAM USER INTERFACE
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REGIONAL MODEL FLOW MTDM Demographic Data Processor Peninsula Model TAZ Demographic Data Parcel (Micro TAZ) Database from LUTSAM Define Macro TAZs to be Micromodeled Run Demographic Data Processor Randomly Assigns Household Type to each New Household Re-allocates remaining people, vehicles, and workers to parent TAZ households Refined Trip Generation Refined Trip Distribution Refined Mode Split Refined Traffic Assignment Master Input Network Link and Node Database from LUTSAM Run Network Processor Combines Micro Model and Peninsula Model Links and Nodes into Single Model Network Extract AM/PM peak hour subnetwork and trip tables for microsimulation MTDM Network Processor 11
HOUSEHOLD SYNTHESIZER
LUTSAM - Test Scenario 13 13
SCENARIO LOCATIONS 1. Suburban Traditional 2. Urban 14
SCENARIO DESCRIPTIONS Suburban Traditional 200 single/multi family homes with a big box store Traditional design Four entrances to adjacent roadways Poor connections and pedestrian facilities Urban 200 single/multi family homes with one big box store Compact, dense design Two entrances to adjacent roadways Well connected and completely walkable/bikeable community 15
16 SUBURBAN TRADITIONAL
17 URBAN GRID
WALK/BIKE TRIPS (DAILY) 1200 1100 1000 900 800 700 Traditional Urban 600 500 400 300 Walk Bike 18
VMT & VMT/TRIP 35,000 12 30,000 10 25,000 8 20,000 15,000 Traditional Urban 6 Traditional Urban 10,000 4 5,000 2 VMT VMT/Trip 19
VHT & DELAY 1000 900 800 700 600 500 400 Traditional Urban 300 200 100 0 Congested VHT Free VHT Delay 20
SMYRNA TRANSPORTATION AND LAND USE STUDY
SMYRNA TRANSPORTATION AND LAND USE STUDY Regional Model TAZ = 2,136 Census Block TAZ = 22,500 Tax Parcel TAZ = 7,700
SMYRNA TRANSPORTATION AND LAND USE STUDY Sheridan s Pub Christiana Hospital Downtown Smyrna William Henry Middle School Southern Elementary School
SMYRNA TRANSPORTATION AND LAND USE STUDY Townhomes Retail Single Family Units Can the Design Form of Potential Development Locations AND Improved Bike & Pedestrian Connections Contribute to Travel Patterns Shifts? US 13 Bike & Pedestrian Improvements
SMYRNA TRANSPORTATION AND LAND USE STUDY Results: Significant Increase in Bike/Walk Trips 10% Decrease in Auto Trips to Shopping Pedestrian Trips to Adjacent Shopping Center 10% Less VMT / Unit Vehicle Trips Less Travel on Arterials & Key Intersections 11% Less Emissions / Unit 25
26 SMYRNA SAMPLE VIDEO
Conclusions Useful for a variety of applications Regional studies Small area studies Corridor studies Transit evaluations Multimodal Studies Allows Standard MPO and Statewide Travel Demand Models to operate at the tax parcel level, taking advantage of the benefits of both regional and parcel based models.
Contacts Scott Thompson Graves 724 779 7940 sthompson graves@wrallp.com Mike DuRoss 302 760 2110 michael.duross@state.de.us Rafey Subhani 410 246 3434 rsubhani@wrallp.com Eric Sundquist 608 265 6155 erics@cows.org Bill Holloway 608 265 5899 holloway@ssti.us