Planning Freight-Efficient Land Uses: Methodology, Strategies, and Tools (2022) / Chapter Skim
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Pages 49-61
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From page 49... ...
49 For effective land-use planning and policy, it is crucial to have a solid understanding of the importance, extent, and geographic patterns of freight activity. This will help to identify the key issues, to recognize the strength and weakness of the local economy, and to identify any opportunities or threats.
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From page 50... ...
50 Planning Freight-Ef cient Land Uses: Methodology, Strategies, and Tools Exhibit 2 outlines the suggested analyses to understand the composition of the local economy. is analysis can be conducted at di erent geographic levels, such as at county, zip code, or establishment level if the data are available.
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Understanding Existing Local Conditions 51 intensity of activities decreasing with increasing distance from the core. The polycentric form exhibits multiple high-density cores, while the disperse form does not have any distinctive core.
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52 Planning Freight-Efficient Land Uses: Methodology, Strategies, and Tools various zip codes. The second step is to sort the zip codes in descending order of employment density.
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Understanding Existing Local Conditions 53 Identification of Economic Pole(s) and Comparison of the Level of Centrality Software: • GIS Data: • Establishment data at zip code level, or establishment-level data • Zip code boundary polygon shapefile • Road network shapefile General Guidance: • Load the zip code boundary and the road network into GIS.
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54 Planning Freight-Efficient Land Uses: Methodology, Strategies, and Tools Spread of Economic Activities Software: • GIS • Statistical Software (e.g., Excel, Google Sheets) Data: • Establishment data at zip code level, or establishment-level data • Zip code boundary polygon shapefile • Road network shapefile General Guidance: • Load the zip code boundary shapefile and the road network shapefile into GIS.
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Understanding Existing Local Conditions 55 4. Clusters of distributors and clusters of receivers: using the employment data for Wholesale Trade (NAICS 42)
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From page 56... ...
56 Planning Freight-Efficient Land Uses: Methodology, Strategies, and Tools Understanding Physical Separation of Key Supply Chain Stages Software: • GIS Data: • Establishment data at zip code level, or establishment-level data • Zip code boundary, county boundary • Road network General Guidance: • Identify supply chain stages of interest and relevant sectors. • Use GIS to identify the main clusters of establishments in the relevant sectors (in this case Manufacturing, Transportation and Warehousing, and Retail Trade are selected)
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Understanding Existing Local Conditions 57 Figure 18. Illustration of assumptions used for quantitative estimation.
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From page 58... ...
58 Planning Freight-Efficient Land Uses: Methodology, Strategies, and Tools 6.3 Understanding Freight Activity Gaining solid insight into how freight activity -- particularly FTG -- is distributed across the study area is essential. Among other reasons, quantifying the FTG at the zip code level or at a finer level if desired by the analyst, allows land-use planners to identify the need for FELU initiatives.
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Understanding Existing Local Conditions 59 6.3.2 Business-to-Consumer Freight Activity As with the B2B models, the team estimated models for different time periods using the NHTS (Wang and Zhou 2015)
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60 Planning Freight-Efficient Land Uses: Methodology, Strategies, and Tools efficiently generate spatial representations of structures. For example, Microsoft developed a two-stage process that generates building footprints for the entire nation.
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From page 61... ...
Understanding Existing Local Conditions 61 located, or any localized freight-related traffic impacts from the on-site land-use activities. To address the lack of these essential elements, users need to add other spatial datasets.
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