Quantifying Transit’s Impact on GHG Emissions and Energy Use—The Land Use Component (2015) / Chapter Skim
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32 S E C T I O N 6 The calculator (available at www.TRB.org/main/blurbs/172110.aspx) works through the following four steps: • 6.1 Step 1: Select Your Baseline Region.
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The Calculator: User Guide and Case Studies 33 Use the drop-down menus in the Urbanized Area Characteristics table shown in Figure 6 to select a state and urbanized area, and the table will return information on the transit and road network, land use characteristics, and travel characteristics in that urbanized area. You can use the Urbanized Area Characteristics table to determine whether characteristics, especially density, transit service, and VMT of the urbanized area are a reasonable match for the characteristics of your transit service area.
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34 Quantifying Transit's Impact on GHG Emissions and Energy Use -- The Land Use Component by clicking on one of the two radio buttons and then clicking the purple button below the menu: • If you choose Select a federal-aid urbanized area, clicking this button will return you to the introduction page so that you can select an urbanized area to use as a baseline region from the drop-down menu. • If you choose Define a custom region, clicking this button will bring up a worksheet where you will enter inputs about your custom baseline region.
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The Calculator: User Guide and Case Studies 35 What type of analysis do you want to conduct? Regional Project A regional project serves a large part of a transit agency service area, including multiple corridors.
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36 Quantifying Transit's Impact on GHG Emissions and Energy Use -- The Land Use Component The calculator is capable of analyzing different types of transit improvements at different scales. Figure 10 summarizes the different types of projects that the calculator is capable of capturing at each scale of analysis.
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The Calculator: User Guide and Case Studies 37 accessibility to destinations) , increased speed (i.e., accessibility to destinations)
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38 Quantifying Transit's Impact on GHG Emissions and Energy Use -- The Land Use Component The table shows information on the current transit and road facilities for reference, in order to give users a sense of the scale of new planned projects. The key inputs for regional projects are transit route miles and revenue miles.
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The Calculator: User Guide and Case Studies 39 The key inputs for station area projects are whether the project includes a new rail/BRT station and the increase in the number of jobs accessible by transit. Users must input at least one of these in order for the calculator to estimate benefits.
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40 Quantifying Transit's Impact on GHG Emissions and Energy Use -- The Land Use Component 6.3.4 Benefits of Current Transit Service This analysis describes the benefits of the current transit system for a region based on the baseline urbanized area or custom baseline region defined by the user. No additional inputs are necessary.
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The Calculator: User Guide and Case Studies 41 6.4.2 Corridor Analysis Figure 17 shows the table of benefits for analyses of corridor transportation projects. The numbers shown in the table are placeholders provided to illustrate the structure of the calculator's outputs, rather than actual analysis results.
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42 Quantifying Transit's Impact on GHG Emissions and Energy Use -- The Land Use Component The calculator only estimates benefits due to the land use effect, not those due to the ridership effect. This is because the calculator does not collect sufficient information to estimate baseline ridership at the station area level.
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The Calculator: User Guide and Case Studies 43 6.5 Case Study: Delaware Valley Regional Planning Commission Delaware Valley Regional Planning Commission (DVRPC) used the calculator to estimate land use effects for an ongoing study, "Alternatives Development for Roosevelt Boulevard Transit Enhancements." The goal of the study is to develop and screen a range of financially feasible alternatives for improved transit along Roosevelt Boulevard that would better meet the needs of neighborhood residents and longer-distance commuters from areas surrounding Philadelphia.
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44 Quantifying Transit's Impact on GHG Emissions and Energy Use -- The Land Use Component Source: DVRPC Figure 21. Proposed bus stops in Roosevelt Boulevard project.
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The Calculator: User Guide and Case Studies 45 6.5.1 Baseline Region DVRPC selected the Philadelphia urbanized area for its baseline region. As seen in Figure 20, the bus corridor under consideration covers a diverse range of land use types, representative of the larger region.
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46 Quantifying Transit's Impact on GHG Emissions and Energy Use -- The Land Use Component 5 miles higher than the current average of 23.5 miles per day per person. The land use benefits from current transit are estimated to have cut over 3 miles per capita per day.
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The Calculator: User Guide and Case Studies 47 Figure 25. Benefits of Cottman Avenue transit stop.
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48 Quantifying Transit's Impact on GHG Emissions and Energy Use -- The Land Use Component Source: Utah Transit Authority Figure 26. UTA's Frontlines 2015 rail plan.
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The Calculator: User Guide and Case Studies 49 Custom baseline region characteriscs Transit network Total transit direconal route miles 2,259 Heavy rail Light rail 39 Commuter rail 88 Non-rail 2,132 Total annual transit revenue miles 18,418,771 Road network Total roadway lane miles 2,359 Freeways 561 Other roads 1,798 Land use Gross populaon density (people / sq.
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50 Quantifying Transit's Impact on GHG Emissions and Energy Use -- The Land Use Component Figure 30. Benefits of Mid-Jordan corridor.
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