An Integrated Approach to Statewide Travel Modeling Applications in Delaware
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1 TRB 88 th Annual Meeting Washington, D.C. January 14 th, 29 An Integrated Approach to Statewide Travel Modeling Applications in Delaware The Context: Challenges for Today s Modelers: Personnel: Vacant Modeling Positions Locating Qualified Recruits Finding & Retaining Staff Model Content: Increasing Technical Complexity Longer Run Times More Studies & Plans Many More Scenarios & Alt s Intermodal Emphasis Integration with Land Use Stakeholders: Increasing Demands for More Detailed Data Reduced Budgets for Model Development & Maintenance Challenges Resources Time Today s Presentation: Background & Overview of Delaware s Context Why We Did It This Way... Review Modeling Approach Review Model Development Activities Examples The Context: Increasing Tasks for DelDOT s Model Update Network & Land Use File Update AADT & External Counts Update Equations Model Development: Model Improvements Expand Expand New Reporting & Summaries GIS Integration Model Applications: Development Coordination: Site Trip Distributions Background Traffic AADT & DHV Shift or Diverted Traffic Model Applications (continued): Regional Planning: MPO Long Range Plans MPO TIP s Delaware STIP Truck/Freight Planning Congestion Mangement System Studies: EIS/MIS Corridor & Subarea Studies Community Plans Growth Factors for Synchro/VISSIM Design Year Forecasts: Title Box Forecast AADT Design Year K, D, % Trucks Upstream Population Density (Bridges) Air Quality: SIP Emissions for State Air Agency Conformity Emissions CMAQ Analysis Strategic Planning Background: Encompasses Delaware plus Maryland s Eastern Shore Population of 1.2 Million Area of 5,375 miles 2 Northern Delaware I-95 Corridor (225K AADT) Urban/Suburban Character Southern Delaware Resort Area Beaches Rural Character Policy Decisions Develop Standard Applications When Responding to Project Level Requests. All Model Development Efforts Must Support Legacy Features. Any New Features Must Integrate with Entire Model Chain. Leverage Model Development Funds: 1) Delaware Travel Monitoring System (DTMS): Ongoing Trip, Mode, O D Data Collection 25 Households/Month, CATI Polling Method Over 32, Surveys in Database Since ) Conduct O D Surveys Within Data Collection Phase of Each Study (When Possible).
2 Travel Model Organizational Structure Shared Support Roles High Level Coordination University of Delaware: Model Testing (2 Courses) CIEG Transportation Planning CIEG Regional Analysis Methods Data Collection (DTMS) Model Maintenance UD College of Civil Engineering Delaware Transportation Center University Research Center College of Urban Affairs Center for Applied Demography & Survey Research Delaware DOT Planning: Coordination Model Applications WR&A: Data Analysis Model Development Quality Assurance Traffic Analysis to Support the NEPA Process 32 Mile Long Corridor 25 SADT = SADT = 9+ 3 Segments, 27 Alternatives Study Corridor Peninsula Travel Model Overview Model Maintenance (Network, TAZ, & Count Update Utilities) (5 Step Travel Demand Model Equations) GIS TAZ Land Use Layer Air TIS TIS Model (Extra P s P s & A s) 2 Volume Delay Curves (GIS Network, ) (GIS Network, Tax Parcel TAZ ) Outputs (Reports, GIS Files, Loaded Networks, etc) Peninsula Travel Model Peak Season Tourist Model 1) 1) Check Box (Selects Summer Model) 2) 2) Seasonal Land Use in in TAZ File 2 Volume Delay Curves
3 1) 1) Standard CUBE Voyager Process 2) 2) Specific Assignment Code 3) 3) Separate Fields on on Loaded Output 4) 4) Check Box Turns On Code 5) 5) User-List of of Selected Links Check Box, Code, & Select Junction File 1) 1) Standard CUBE Voyager Function 2) 2) Specific Path Building & Assignment Code 3) 3) Check Box Turns On Code & Selects Junction File Specific Catalog Keys for: Year, Network File, Alternative Code Can Be User-Defined for Each Run/Batch Comparison of of CUBE & Synchro Results Location of of Intersection File Junction Nodes US 31 EIS 2 Volume Delay Curves
4 US 31 EIS - Toll Model Cash/EZPass Market Shares Frequency of Use Discount Variable Rates by Vehicle Class Walk & Drive Access, Local+Express, Commuter Choice Choice Highway Highway Transit Transit SOV HOV Walk Drive SOV HOV Walk Drive No Toll Cash/E-ZPass No Toll Cash/E-ZPass No Toll Cash/E-ZPass No Toll Cash/E-ZPass 2 Volume Delay Curves US 31 EIS 1) 1) Check Box Turns On TIS Model 2) TIS Model ( Extra P s & A s ) 2) Extra P s & A s Added-In Build-No Build Model Track Volume & Travel Pattern Changes Due to to Road Closure During Construction Project 1) 1) County-Based TAZ List US 31 EIS 2) 2) ~ 35 TAZ Added to to Each County for Future Use. Build-No Build Model Direct Impacts of of Projects, Not Just Changes to to Regional VMT & VHD. Who Are Specific Users of of Projects?? What Routes Are they Taking Today (without the project)? AREA OF OF IMPACT MEASURE OF OF EFFECTIVENESS YELLOW W/ W/ INTERCHANGE & US US 9 RELOCATION YELLOW W/O W/O INTERCHANGE & W/O W/O US US 9 RELOCATION DIFFERENCE Impact on on Entire Entire System Total Total Travel Time Time (Hours/Day) Total Total Travel Cost Cost ($/Day) 1,513,521 $5,54,726 1,54,845 $51,93,146 27,324 $552,419 Impact on on Potential Interchange Users Users Total Total Travel Time Time (Hours/Day) Total Total Travel Cost Cost ($/Day) 18,939 $3,568, ,222 $3,625,726 2,829 2,829 $57,495
5 Build-No Build Model 1)Check Box Turns On Specific Code. 2)User-Defined List of of Link(s). Example #4: Analysis 1)Pre-formatted SIP, Conformity, & STIP Reports in in *.XLS Format. 2)Emmisions fields in in Network for Link-Based Emissions Analysis. TOTAL VOLATILE ORGANIC COMPOUND EMISSIONS (GRAMS/DAY) New Castle County 23 Functional Class LDGV LDGT12 LDGT34 HDGV LDDV LDDT HDDV MC TOTAL Interstate-Rural Other PA-Rural 23,646 98,43 39,884 1, ,96 13, ,899 Minor Arterial-Rural 57,331 26,926 1,972 2, ,78 29, ,55 Major Collector-Rural 71,761 32,435 13,21 4, ,968 34,986 16,568 Minor Collector-Rural 23,552 1,644 4,273 1, ,32 11,482 52,699 Local-Rural 67,88 3,681 12,317 4, ,754 33,93 151,882 Interstate-Urban 587, , ,273 3, , ,728 1,414,898 Freeway-Urban 44,843 21,655 8,88 2, ,522 29,861 19,33 Other PA-Urban 652,54 34, ,177 34, , ,949 1,48,65 Minor Arterial-Urban 222,997 12,98 41,893 12, ,49 111,969 51,411 Collector-Urban 299, ,388 54,355 18, , ,44 67,276 Local-Urban 526, ,14 95,586 33, , ,827 1,178,72 Total 2,758,19 1,282, , , ,833 12,363 1,51,889 6,338,999 Total (in Tons) Example #4: Analysis Example #5: 2 Volume Delay Curves 2 Volume Delay Curves Example #4: Analysis 1) 1) Check Boxes Turns On Specific Codes. 2) 2) MOBILE 6.2 Executed within Voyager. 3) 3) Integrated with Estimating Emissions for Each Run. Example #5: Capacity Constrained Hourly Assignments. Intersection Traffic Control. User-Defined: Start Time O & D Regions Evacuation Rates Available Links
6 Example #5: Tracks Background, Spillover and Evacuation Trips by by Hour. Adjusts Hourly Capacity based on on Jam Density. Example 6: Micro-Model: 4-Step Travel Demand Integrated Land Use & Transportation Model Statewide Data Layers Example #6: Detailed Transportation/Land Use Studies Example 6: Micro-Model Bridgeville Rehoboth Beach Area The Need : 3 Sussex County Subarea Studies in in FY 29. Each Will Have Detailed Land Use Component using Using CommunityViz. Traditional Models Unable to to Provide Required Level of of Detail for for Land Use Impacts. Millsboro Trip Generation = Parcels as as TAZ (CUBE Utility). Paths = Driveways as as Zone Connectors (CUBE Utility). Collapse Land Covers, ITE 7 th th Edition Rates. Assignment Layers of of Local & Regional Traffic. Example #6: Micro-Model Under Development FY 29 Model Development Goals: Integrate Dynamic User-Equilibrium. 2 Volume Delay Curves Trip Rate/Distrubution Update Using Monthly Polling Data. Develop Micro-Model for Use in U of D Class Regional Analysis Methods and 3 Local Area Studies. Integrate TELUM Land Use (TAZ Allocation) Model. Develop to Assist County Comp Plans Using LandScan Data from Oak Ridge National Lab. NYC AM AM Population NYC PM PM Population Graphics: Time.com
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