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5/29/2014 4:28:31 PM
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Planning Files
Planning Files - Planning File #
07-053
Planning Files - Type
Planned Unit Development
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--. <br />� <br />Mr. Jeffrey Agnes 11 September 12, 2007 <br />TRAFFIC ANALYSES <br />As mentioned at the beginning of this report, the purpose of the trafiic analyses is to determine to <br />what extent the proposed changes in uses under the Concept PUD would impact the quality of <br />traffic operations at the three subject intersections. Also, effects regarding potential closure of <br />the existing right turn in and out only access on County Road are addressed under the 2009 build <br />condition. <br />Capacity analyses were performed for the three subject intersections for the three traffic <br />scenarios: existing (2007), 2009 no-build, and 2009 build. The traffic analyses were completed <br />using the Synchro 7.0 software package. Capacity analysis results are presented in terms of level <br />of service (LOS), which ranges from A to F. LOS A represents the best intersection operation, <br />with very little delay for each vehicle using the intersection. LOS F represents the worst <br />intersection operation with excessive delay. Most agencies in Minnesota consider that LOS D <br />for the intersecrion as a whole represents the minimal acceptable LOS for normal peak traffic <br />conditions. <br />Results of the capacity analyses for the weekday p.m. peak hour are presented in Figure 4. Two <br />key fndings regarding overall results for the three key intersections are: <br />a) All three intersections operate at acceptable levels of service under all three analysis <br />scenarios. <br />b) For each intersection, no change occurs in the level of service from the existing <br />conditions to the 2009 no-build scenario to the 2009 build condition. <br />For the two intersections on Snelling Avenue, several movements experience level of service E <br />or F. Though this is not ideal, it is not uncommon for several movements to experience greater <br />delay levels than the intersection as a whole. One factor which contributes to this outcome is <br />that these two signals are interconnected, and Mn/DOT has established timing parameters to <br />adequately serve through traffic on Snelling Avenue. Further, it is important to note that these <br />level of service conditions exist today and will not get worse with the 2009 no-build or build <br />scenarios. <br />Results of the capacity analyses for the Saturday mid-day peak hour are presented in Figure 5. <br />Similar to the results from Figure 4, two key iindings regarding overall results for the three key <br />intersections under this Saturday mid-day peak hour are: <br />a) All three intersections operate at acceptable levels of service under all three analysis <br />scenarios. <br />b) No change occurs in the level of service from existing conditions to the 2009 no-build <br />scenario to the 2009 build condition, except that the level of service at the Snelling <br />Avenue/Har Mar access intersection changes from level of service B to C with the <br />2009 no-build condition. <br />
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