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Attachment 4 AM: 7:00 AM to 8:00 AM PM: 3:00 PM to 4:00 PM Saturday MIDDAY: 12:30-1:30PM Figure 4 illustrates the existing peak hour traffic volumes. Future Conditions To quantify the impacts of a development on the surrounding roadway system, it is necessary to first forecast and analyze traffic conditions that would be present on the roadway system without the inclusion of the proposed project. For the purposes of this analysis an anticipated construction completion date for the entire Proposed Project is 2025, thus year 2025 was selected for analysis to compare traffic conditions without and with the Proposed Project. To determine the future traffic conditions a review of historical traffic counts based on MnDOT data and a review of the City of St Paul, City of Rosedale, and Ramsey County 2040 Comprehensive Plans have been conducted. The MnDOT data shows that traffic in the area has declined by approximately fifteen percent over the past two decades, while the City of St Paul and Ramsey County Comprehensive Plans forecast traffic will remain approximately the same over the next twenty years. The City of Roseville Comprehensive Plan meanwhile indicates traffic will increase by approximately 0.4 percent over the next twenty years. To provide a conservative estimate of future conditions the Roseville 0.4 percent growth rate has been adopted for this study. In other words, the existing traffic volumes have been grown by this rate to represent the 2025 No-Build peak hour traffic conditions. Figure 5 illustrates the No-Build traffic volumes with the growth applied to existing traffic volumes for year 2025. Trip Generation and Distribution The Proposed Project will include a new household hazardous waste disposal/recycling facility and will reorganize the existing organic/compost recycling to the northern portion of the site. In addition, the site will include a public and employee space for visitors and workers. To estimate the site-generated traffic, forecasts from Ramsey County have been used which indicate the site will generate approximately 85,000 trips per year or 327 trips a day for a typical day (using a 5-day operations week). That said during the peak times associated with Spring and Fall clean up, the Proposed Project is expected to generate 2,500 trips per week or 500 trips per day. Discussions with staff from similar sites in Hennepin County indicate the Saturdays during the Spring and Fall times have slightly higher traffic, and the peaking tends to extend over three or four hours rather than one hour. To provide a conservative estimate this analysis assumes the peak hour will generate twice as much traffic when compared to an average hour. This peak trip generation has been adopted for each traffic peak of the surrounding roadways namely the weekday commuter AM Peak, weekday PM Peak, and the Saturday Midday Peak. Table 2 summarizes the trip generation estimate for the Proposed Project. Table 2 - Trip Generation AM Peak HourPM Peak Hour Saturday Pk Hr Land Use Daily EnterExit EnterExit Enter Exit Environmental Service Cntr 500Trips 63Trips 63 Trips63Trips 63 Trips63 Trips 63 Trips TOTAL 500 Trips 126Trips126 Trips126 Trips As shown in Table 2, the Proposed Project will generate 126 trips (63 entering and 63 exiting) during the morning traffic peak hour, 126 trips (63 entering and 63 exiting) during the evening traffic peak hour, 126 trips (63 entering and 63 exiting) during the Saturday Midday Peak and 500 daily trips. 2 | Page Ramsey County Environmental Service Center, Roseville, MN