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ARDEN HILLS CITY COUNCIL WORK SESSION — APRIL 22, 2024 3 <br />improving traffic flow, but this was not reasonable. He explained Level C would require a 30 to <br />45 second delay at traffic signals. He stated this was not anything he was concerned about. <br />Councilmember Holden inquired how many of the intersections were at Level C and how many <br />were better. <br />Ms. Haase stated there was a mixture between AM and PM peaks. She explained County Road H <br />and I 35-W southbound and northbound ramps were anticipated at Level A in both the AM and <br />PM peaks under both scenarios. She indicated the CSAH 96 and the Northern Heights access <br />point would be Level C. She stated the CSAH 96 and Highway 10 southbound ramp would be <br />Level C and for the maximum development scenario would be Level D for the AM peak and <br />Level C for the PM peak. <br />Councilmember Holden reported Ramsey County owns the traffic signals. She asked if this had <br />been taken into consideration. <br />Mr. Rojer stated he had coordinated with Ramsey County and they provided the initial signal <br />timing. <br />Councilmember Monson pointed out the information for the intersection grading was on Page <br />13 of the packet. She appreciated the Kimley Horn staff speaking to the cost of getting each <br />intersection to Level A. <br />Mr. Rojer commented that with roadways and developments, it was all about right sizing. <br />Mayor Grant reported back in 2014 when a roundabout was being proposed, he recalled an ADT <br />of 29,000 was discussed and CSAH 96/Northern Heights would support 9,700 ADT. He <br />questioned if the roundabout would support a greater ADT than 29,000. <br />Mr. Rojer stated this was evaluated and commented on how traffic would be spread out <br />throughout the day. He indicated he was not seeing anything in his updated analysis that shows <br />the roundabout would be over capacity throughout the day. <br />Mayor Grant asked what the turn signal at CSAH 96/Parkway would support. <br />Mr. Rojer anticipated 23,000 cars per day would be added and noted this intersection would <br />operate effectively. He stated the development would have 46,000 trips per day and with the <br />general distribution, half would use the north entrance and half would use the south entrance. <br />Councilmember Fabel inquired if the analysis had considered the cultural change of decreased <br />commuting because more people were working from home. <br />Mr. Rojer reported the AM and PM peak were analyzed pre-COVID and since then, daily traffic <br />volumes have returned to normal. He explained the AM and PM peaks were not as significant <br />because commuters were allowed to have more flexible hours. <br />Councilmember Fabel asked if judgements were made about people cutting back on trips in 10 <br />years or so. <br />