Myriad Uses of the Ohio Statewide Travel Demand Model for Access Ohio 2040 Rob Bostrom Greg Giaimo Sashi Gandavarapu Don Vary Paul Hershkowitz May 5 2013.

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Presentation transcript:

Myriad Uses of the Ohio Statewide Travel Demand Model for Access Ohio 2040 Rob Bostrom Greg Giaimo Sashi Gandavarapu Don Vary Paul Hershkowitz May

Presentation Overview Access Ohio Background Review of Ohio Statewide Model Access Ohio Applications – Existing conditions report – Corridor study – Environmental Justice – Economic modeling

ACCESS OHIO 2040

Access Ohio Background Schedule - March, 2012 – December, 2013 Purpose : support ODOT in producing an update to the Ohio Statewide Transportation Plan (Access Ohio 2030) Involves assisting ODOT in guiding, informing and supporting transportation investment decision- making throughout the state

Access Ohio Background The process involves: – Determining goals, objectives and performance measures, as well as best practices in statewide planning (done) – Developing statewide multimodal needs (done) – Developing alternative investment scenarios to solve these needs (done) – ID Statewide multimodal corridors and hierarchically rate them based on statewide importance (done)

Access Ohio Background AO40 will outline the funding packages, policies, and implementation processes towards a financially sustainable, modally-balanced, well-connected transportation system (underway) The effort will also involve a proactive and ongoing process of soliciting public involvement and stakeholder outreach throughout the transportation plan update process (on-going) The ODOT statewide model (OSTDM) is playing a key role in this effort

OHIO STATEWIDE MODEL OVERVIEW

Ohio Statewide Integrated, Economic Land Use and Travel Demand Forecasting Model

Ohio Statewide Model Overview

Ohio Statewide Model Overview – help from Greg? Size Features History Uses

ACCESS OHIO APPLICATIONS

Access Ohio 2040 Applications Worked with Greg Giaimo on all applications System Conditions Team – CDM Smith: Sashi Gandavarapu, Jeff Carroll, Amanda Spencer, Laura Kulecz Corridor Study Team – CDM Smith: Sashi Gandavarapu, Suzann Rhodes, Paul Hershkowitz Environmental Justice Team – CDM Smith: Sashi Gandavarapu, Samantha Wright – CH2MHill: Michelle Maggiore Economic Modeling Team – CDM Smith: Eric McClelland, Don Vary

Access Ohio 2040 Applications Statewide model informs long range planning in 4 main ways: 1.Report system conditions 2.Inform selection of corridors of importance for future program prioritization 3.Provide accessibilities for environmental justice analysis 4.Quantify economic impact of ODOT’s planned construction program

System Conditions: Performance Measures Existing and projected levels of congestion from Statewide Congestion Management System Projections in this system based largely on statewide model forecasts (see Greg Giaimo’s presentation in the model validation session at 1:30 Tuesday for more information on how that works) Various performance measures reported such as: – Vehicle miles traveled; – Vehicle hours traveled; and – Congested delay.

System Conditions: VMT changes Projects a 15 percent increase in VMT to go with projected13 percent increase in households. There is a 35 percent increase in overall delay due to congestion by the year 2040 with much higher increases in delays for interstates and expressways.

System Conditions: LOS Change Calculate Levels of Service (LOS) at the planning level using methodology from the Highway Capacity Manual. See next two slides. LOS is generally worse in the 2040 E+C network than the 2010 base conditions due to additional traffic. Urban areas experience worse conditions than rural area in both 2010 and 2040, which is not unusual since urban freeways are normally built to a LOS D standard rather than LOS C for rural highways. Congestion also increases in the major urban areas such as Columbus and Cincinnati, as well as the Cincinnati-Dayton corridor.

System Conditions: LOS Change

System Conditions: Growth Rates

System Conditions: Etc.

Corridor Analysis Corridor based plan (NOT A PROJECT PLAN!) – Highway – Also aviation, bike, maritime, rail and transit Corridor level will be used to set future priorities Recommended corridors include: – National corridor – Statewide primary corridor – Statewide secondary corridor – Beltways and connectors – Local corridors Corridor matrix under development

Highway Corridor Analysis Exploratory analysis with model looked at various other measures such as detailed market segmentation available in model for defining and prioritizing corridors

Corridor Analysis

Corridors will be compared using these measures (under development) – Corridor characteristics: Volume: miles/segment; 2010 ADT, 2040 ADT, % Change ADT, 2010 ADTT, 2040 ADTT, % change ADTT, value of commodities, % GSP, weighted volume, Classification: state functional classification, Connectivity: state evacuation plan, MPO, # jobs, MPO area’s population, # of multimodal facilities – Performance Attributes (Access Ohio Goal Areas) Preservation: pavement performance, bridge deficiency Safety: highway fatality safety score, highway serious injury safety score Mobility and Efficiency: Travel time reliability index #, volume/capacity 2010 and volume/capacity 2040

Environmental Justice Methodology Identify the affected population using socio-economic data – Minority – Poverty – Disadvantaged

Environmental Justice Methodology Estimate the nature and extent of the impacts using ODOT post processor tool. The post-processor tool uses model accessibility to generate a score using 16 employment categories as a function of travel time and available modes of transportation. These scores are then combined, based on types of employment, into five metrics: – Accessibility to Jobs – Accessibility to Goods and Services – Accessibility to Health Care – Accessibility to Schools – Accessibility to Population Each access metric is then weighted by the corresponding population subgroup. – Base Year 2010 – Future 2040 Existing and Committed Network (2040 E&C) – Future 2040 Build Network (2040 Build)

Environmental Justice Methodology Assess whether the impacts are equitable by comparing access outputs for each TAZ for different scenarios with respect to: – Percentage change in access – Pair-wise statistical hypothesis testing – Geographic overlay of impacts and EJ populations Ohio Non-MPO % change in Job Access – 2040 E+C vs build – 2010 vs build

Environmental Justice Analysis

Access Ohio Background

Economic Analysis While Access Ohio is not a project plan, will assess the economic impact of ODOT’s currently planned program of projects Two components: 1.TRAC (Transportation Review Advisory Council) projects which are all major new capacity projects, TRAC projects form the long range plan build network 2.All other capacity projects in the STIP (STIP-TRAC = the long range plan no build network)* *some TRAC projects are in the STIP if they are near term, other are not if they are projected to open longer term

Economic Analysis: Tier 1 Projects

Economic Analysis Networks are currently being updated in the model to represent the latest TRAC and STIP systems In just a couple weeks, we have needed to code 300+ projects to advance network from 2007 to 2010 base, almost 500 projects to obtain 2015 no build network (TIP-TRAC) and about 90 TRAC projects to create build networks through 2040

Economic Analysis When complete we will rerun models through 2040 and then use ODOT’s CMAQ/User Benefit Process to generate economic impacts (the next presentation covers that in more detail)

Lessons Learned Ongoing model updates can delay the final product. Don’t reinvent the wheel, use what is already there as much as possible Techniques used for LRTPs seem to vary significantly from state to state. Perhaps a synthesis is needed soon. Long range plan process is more important than long range plan documents, agency staff need to be intimately involved, consultant’s provide number crunching and documentation support