At this stage, viewpoints were selected in the rendered environment to evaluate the site. Several views from the correctional officer tower locations were included, as these views were of importance in gauging the quality of visibility and uniformity of luminances in the upgraded lighting plan.
The base file was then modified to reflect the new lighting scenario. Most existing luminaire locations were removed and high mast lighting system was inserted in three locations. Roadway cutoff distribution luminaires were added to the top of the perimeter walls to supplement the high mast fixtures. These cutoff luminaires were chosen to minimize glare for correctional officers and improve the illumination of the walkway on top of the wall
The AGi32 model was recalculated with the new luminaires, and the calculation points and renderings compared. Using the existing base model for the redesign made this process quite simple, as the calculation point placement and the remaining existing luminaires were already located. A principal benefit came from having the same viewpoints already imbedded in each file. The existing and proposed viewpoints were exported as JPG image files. This made it very easy for the Owners to see the benefits of the new system. Another advantage of the versatility of the program’s viewpoint feature was demonstrated with an exported VRML model. All the embedded viewpoints are exported so a user can scroll thru the views, get to a desired viewpoint, and then explore the virtual reality model from that location.
AGi32 made very clear how the new lighting system will improve security at the penitentiary. It clearly shows how roof lines and security points are illuminated. The image files demonstrate how lighting uniformity is dramatically improved throughout the site making it easy for Iowa Department of Corrections to visualize the security enhancements achieved through a lighting upgrade.
Author: Jason Odefey can be reached at email@example.com. Rendering completed while at Brooks Borg Skiles Architecture Engineering.
Renderings Copyright © 2004 Brooks Borg Skiles Architecture Engineering LLP
Aerial photo used with permission of Jeff Hobson of Hobson Photography, provided by the State of Iowa Department of Corrections.