I-25 Alameda Avenue Interchange Photosimulations CDOT, Denver, Colorado POITRA Visual provided design visualization, graphic design support and public information website design and maintenance for the Colorado Department of Transportation's (CDOT) I-25 Valley Highway Environmental Impact Statement (EIS). The study looked at design alternatives to increase capacity and reduce congestion on I-25 in Denver between Broadway Boulevard Interchange and the Alameda Avenue Interchange.* The EIS proposed reconfiguring existing I-25 interchange at Alemeda Avenue and Santa Fe Boulevard. Alameda and Santa Fe intersected the interstate in close proximity causing access conflicts. The EIS proposed a final redesign that eliminated or mitigated these issues.

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1. Aerial Photosimulation of Proposed Interchange: Final redesigned I-25 and Alameda Avenue Interchange with reconfigured Santa Fe Boulevard.

Photosimulations 2 1 E Mouse-over images above to toggle between the existing photo and the photosimulations.

A final visualization simulation was needed for inclusion in the EIS document. Photosimulation was the selected illustration method. POITRA artists plotted the proposed interchange configuration onto a stock aerial photograph from EIS concept level plans. Using traditional digital painting techniques POITRA added the interchange bridge structures, walls, ramps, proposed laneage, medians, sidewalks,and landscaping. Potential property takes and adjustments were carefully plotted and represented. The reconfigured interchange displaced a number of commercial properties. The EIS identified all space in the new configuration that could be redeveloped as new commercial properties. POITRA plotted these spaces as a part of the simulation. The previous bridge and roadway design experience of the POITRA Visual principals always plays a significant role in accurately interpreting and representing the Engineer's design particullarly on interchanges. The final aerial simulation images were used as meeting materials for CDOT's public involvement process and in the final EIS document.

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