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? Mr. Steve Schwanke -2- March 16, 2001 .' trips were not included in the analyses. If these additional 23 trips were distributed through all of the analyzed intersections, the level of service at anyone intersection would not change. The second concern raised by SEH relates to the methodology used to estimate trip generation for the office land use. As discussed above, the revised trip generation for the office land use was determined by using the total square footage of all office buildings in the Centre Pointe Business Park. SEH determined trip generation for each office building separately and then summed the trip generation for each office to obtain the total office trip generation. We disagree with this methodology for the following three reasons: · ITE recommends using the total square footage of all office buildings to estimate trip generation when "the buildings are interrelated (defined by shared parking facilities or the ability to easily walk between buildings)". It is our belief that the buildings are interrelated and interconnected, not isolated from each other. Center Pointe is a master-planned business park. The site includes internal roadways, sidewalks and pathways linking all components of the development. · The purpose of our traffic study has been to update the 1997 traffic study prepared by the BRW firm on behalf of the City ofRoseville. In the 1997 study, trip generation for the office land uses was estimated using the total square footage of all office buildings. · The lTE trip generation equation is not valid for small office buildings because of the mathematical formula that it utilizes. Using the SEH methodology, a 12,015 square-foot office would generate 93 p.m. peak hour trips and a 25,445 square-foot office building would generate 108 p.m. peak hour trips. The 25,445 square-foot office is 112% larger, but only generates 16% more trips than the 12,015 square-foot office. Even with the different trip generation methodologies, SEH has reached the same overall conclusion as expressed in the January 16, 2001 EAW. A traffic signal will be required at one of the Centre Pointe accesses on the west side of Cleveland Avenue. .AJthough warrants may be met at more than one driveway, only one traffic signal should be installed. For spacing and other considerations, the Lydia Avenue intersection with Cleveland Avenue has been identified both in the SEH memo and in the EA Was the best candidate for traffic signal installation. Monitoring will be required by the City to determine when actual traffic volumes meet warrants for traffic signal installation and confirm that Lydia Avenue is the correct location for traffic signal control. Cc: Ms. Debra Bloom - City ofRoseville Mr. Dennis Welch - City ofRosevilIe Mr. Kent Carlson - Ryan Companies US, Inc. Mr. Eric Hesse - Liesch Associates Mr. Roger Plum - SEH