Agenda - Council - 01/14/2003 - Laserfiche WebLink

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03 i~ 12p SRF Consultin~ Group Inc 783 475 2~29. Mr. Steve Jankowski -[0- November 26, 2002 A second analysis· was conducted assuming that full access would' still be provided at the intersection of TH 10/Feldspar Street. Results from this analysis indicate that this intersection will still operate at an overall LOS A with a worst approach LOS F during peak hour conditions. The ,,uestbound left-turn lane will provide the necessary capacity, however, the increase in eastbound through traffic will limit the number of gaps available· for left-turning vehicles to cross. Safety is a concern for all vehicles crossing eastbound and westbound through traffic. Closing this median cross-over will improve the overall safety for vehicles traveling on TH I0. With the full-access intersection of TH 10/Feldspar Street remaining open, the intersections of TH 10FRamsey Boulevard and TH LO/Sunfish Lake Boulevard are expected to operate at the same levels of service shown in Table 3, since poor operations at these intersections are due to the high through volumes on TH 10. Year 2025 Future Traffic Operations Analysis An additional analysis was conducted for the. intersections of TH 10/Ramsey Boulevard andTH 10/Sunfish Lake Boulevard to determine how traffic will operate during the a.m. and p.m. peak hours under year 2025 conditions. Roadway assumptions for this analysis include the recommended improvements from the year 2005 analysis. In order to develop traffic forecasts for year 2025 conditions, land use information from the Northwest Metro Corridor and River Crossing Study was used. A One-percent yearly growth rate was used. to account for growth on background traffic volumes, The land south of TI4 10 and north of Riverdale Drive between Ramsey BoUlevard and Sunfish Lake Boulevard is a 41 acre vacant lot zoned commercial/residential. For purposes of this analysis, it was assumed that this land will be fully developed by year 2025. There are currently no developments planned for this land. Therefore, it was assumed that 50 percent of the development Mil be commercial and 50 percent medium density residential: The:buildin'g square footage for the commercial development was determined using a floor area ratio of 0.25. The number of units Was determined using seven units per acre. Trip generation estimates for' daily and a.m./p.m, peak hours were calculated for the future devel°pment based on land use type and size, and trip generation formulas from the 1997 IT.E Trip Generation Reports. The trip generation results are displayed in Table 4. Table 4. Year 2025 Trip Generation Estimates Land USe Size Daily A.M. Peak P.M'. Peak Future Deveio?r~eni ..... Commercial u524,780 sq. ft. ' i11475 141 90 404 · 437 Medium density re'sidential '"145 units 893 1..2 57 56 " 27 Total L 12,.368 i70 138 i '570 584 p.11 I i I I ! I I I I I I I I I I i I I I