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CLIMATE ACTION PLAN - City of Urbana

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4.4 APPENDIX F: POPULATION, EMPLOYMENT AND TRANSPORTATION GROWTH PROJECTIONS FOR 2020<br />

Vehicle Miles Traveled for <strong>Urbana</strong> Traffic Analysis Zones<br />

2005 2015 2025 2035 Percent<br />

Growth<br />

2005-2035<br />

Daily VMT 549,805 740,268 1,084,466 1,110,933 102.1%<br />

Annual VMT (365 days) 200,678,825 270,197,455 395,830,090 405,490,545 NA<br />

Annual Compound<br />

Growth Rate<br />

NA 3.02% 3.89% 0.24% NA<br />

Vehicle miles traveled for the <strong>Urbana</strong> TAZ area are expected to increase at the rates shown in the table above.<br />

The increase between 2025 and 2035 is minimal because population and employment projections were similar<br />

for both horizon years. As we receive more information about potential development, this number is expected<br />

to change.<br />

For comparison, the Illinois Department <strong>of</strong> Transportation catalogs annual VMT for each County in Illinois 1 .<br />

These numbers could be used to refine or adjust projections as needed. While VMT decreased in recent years<br />

past, 2010 saw an increase <strong>of</strong> VMT in Champaign County.<br />

If these projections do not reflect the thoughts <strong>of</strong> the <strong>Urbana</strong> Sustainability Advisory Commission, there are<br />

several methodological alternatives that could be considered.<br />

A: The existing employment projections could be used and an average growth rate applied rather than<br />

the annual compound growth rates. This would reflect a linear projection and assume that the existing<br />

projections are acceptable. An average growth rate could also be applied to Vehicle Miles Traveled.<br />

This option does not require additional analysis or use <strong>of</strong> the travel demand model.<br />

B: The same procedure as described in Option A, but the 2025 projection is used to determine average<br />

annual growth rate. This option does not require additional analysis or use <strong>of</strong> the travel demand model.<br />

C: Establish new projections based on current knowledge <strong>of</strong> development trends. In order to obtain<br />

vehicle miles traveled, the new projections will need to be completed for each TAZ. The new<br />

projections will need to be entered into the travel demand model to obtain the resulting Vehicle Miles<br />

Traveled.<br />

Note:<br />

The CUUATS travel demand model currently predicts transit trips which are included in the VMT calculation. However, the model is<br />

not sensitive to fuel price, parking fees or other policies that may impact transit ridership. This functionality is under development.<br />

Feel free to contact me with questions or concerns. This memo may be cited as the data source.<br />

Sincerely,<br />

Andrew Levy<br />

1 http://www.dot.il.gov/adttravelstats.html<br />

Page | 3<br />

<strong>City</strong> <strong>of</strong> <strong>Urbana</strong><br />

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