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95th Percentile Queues (vehicles) <br />As Chart 4 and Chart 5 show, the N Diamond Lake Road/Brockton Road intersection <br />begins to have excessive delays in the 2025 p.m. No -Build scenario, with a LOS F. <br />The a.m. peak hour operation remains below the LOS D/E boundary up to the <br />developer preferred land -use, where operations jump to a LOS E. These delays are <br />due to an increase in through volumes on N Diamond Lake Road which can no <br />longer be handled with the all -way stop controlled layout. Diamond <br />Lake/Road/Pineview Lane operates acceptable through all 2025 peak periods and <br />scenarios. <br />Chart 6 (a.m. peak hour) and Chart 7 (p.m. peak hour) show the 95th percentile <br />queue lengths on the busiest stop sign controlled approach at intersections with side <br />street stop sign control. Average delays are not calculated for intersections with side <br />street stop sign control because the vast majority of vehicles going through the <br />intersection are on the main roadway and have zero delay, which leads to low <br />overall average delays. At side street stop sign controlled approaches to busy <br />roadways, the average delay for all the vehicles on the approach often exceeds 60 <br />seconds. This can be the case for a few vehicles waiting at the stop sign where <br />improvements would not be justified for the low traffic volume. <br />Instead of reporting average approach delays like the previous charts, Charts 6 and <br />Chart 7 show the 95th percentile queue as the measure of effectiveness at <br />intersections with side street stop sign control. Based on our experience, <br />improvements are not warranted at these types of intersections until the 95th <br />percentile queue at a stop sign is in the five to ten vehicle range. <br />18 <br />16 <br />14 <br />12 <br />10 <br />8 <br />6 <br />4 <br />2 <br />0 <br />Unreasonable 95th Percentile Queue5 - 10 Vehicle <br />.II III III ■■■ ■■■ UN ■I■ HI III III I 1 <br />we e� we \5 tae`roo aac , se eye o <br />cc; <br />`o. <br />(.,0. <br />o. <br />a\a�awm�eS 'PyP 'P <br />60e,6e, .' soqic` , rf' eee <br />o�Q`o��\,\J� \a \ a\Q ec <br />a� ei\ a� ec\t t\6k \ez_e eecaae,6\ 0O\ P`Jds4 `.eo aa ,rt�e e��cps o\0°.c�e�a� <br />.4 .4k. ....¢,zo�4„a. ay_cc. ,c, ,y�it._ <br />.OaaOaOaOOOQ aw <br />o �ao cs <br />aa f Oaaa o <br />OOOadO` <br />I Existing ■ 2025 No -Build 2025 Preferred Land -Use Build <br />Chart 6 — A.M. Peak Hour Queues: Side Street Stop Sign Controlled <br />Intersections <br />Traffic Impact Study 14 <br />North Dayton Development <br />CONSULTING <br />