Interactions Between Transportation Capacity, Economic Systems, and Land Use (2012) / Chapter Skim
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26 C h a p t e r 5 Structure of regressions Focus on Direct Job Impact Regression analysis is a statistical technique used to calculate the magnitude of incremental impact that various explanatory factors (variables) can have on outcomes, holding all else equal.
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27 is a particularly important consideration. They may also be more likely to have rail and air facilities located nearby, which can also gain from highway access improvements.
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28 or regional economies will continue to trend over time in the same way as they have in the past. For that reason, it is also useful to consider regression equations in which the underlying growth trend is not available as an explanatory variable.
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29 that the cost of a project would be related to the scale of development to be served. It should also be noted that jobs are only one way of measuring the economic impact of highway development.
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30 Calculations in t-pICS Web tool The T-PICS web tool enables users to either (a) search for case studies meeting specified criteria (the "Case Search" feature)
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31 Final Economic Impact Estimation Based on analysis of the case study database, the estimated economic impacts are scaled by project size (as reflected by a combination of highway length and traffic level) and adjusted upward or downward based on the policy adjustment factors shown in Table 5.6.
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