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Tart Lake Road Speed Study <br />Page 2 <br />G:\GROUP DATA\Traffic\City of count\Lino Lakes\2023\Tart Lake Rd Speed Study\Memo\Tart Lake Rd Speed Study Memo 05312023.docx <br />The most recent speed study was conducted from October 24-28, 2022, and data from October <br />25-27 was utilized in the analysis (Tuesday-Thursday). Pedestrian volumes were also collected as <br />part of this study. It was determined that data was to be recollected at the east site (site 3), therefore <br />new data was collected from April 25-26, 2023 (Tuesday-Wednesday), at that location and used in <br />the analysis. The location of speed/volume collection, pedestrian volume collection, and the <br />existing DFB sign are shown in Figure 1. Table 1 shows the results of the study completed in <br />2022/2023. Results of the previous studies completed in 2013 and 2015 are shown in Table 2 and <br />Table 3 for comparison. <br /> <br /> <br />Table 1. 2022/2023 Speed Study Results <br /> <br />Table 2. 2015 Speed Study Results <br /> <br />Table 3. 2013 Speed Study Results <br /> <br />The results show that the DFB sign east of Lacasse Drive is continuing to be successful for vehicle <br />speeds in that area (Middle of Tart Lake Road location), as the 85th percentile speeds remain at <br />30-31 mph. 85th percentile speeds east of Otter Lake Road have decreased 1-6 mph below the <br />speed limit and previous 2015 study, at 24-29 mph. Speeds west of Elmcrest Avenue have slightly <br />increased in one direction, with the 85th percentile speed for westbound traffic at 34 mph and <br />eastbound at 29 mph. <br /> <br />Approximately 5.5% of eastbound traffic east of Otter Lake Road is traveling over the speed limit, <br />but less than 1% is traveling above 5 mph over the speed limit. At the middle location, 13%-16% is <br />traveling over the speed limit, but less than 3% is traveling above 5 mph over the p osted speed <br />limit. The location west of Elmcrest Avenue is showing the most problematic speeding occurrences, <br />Location Daily Volume <br />(2 or 3-day avg) <br />Posted Speed <br />Limit <br />85th %ile <br />Speed % > 30 mph % > 35 mph <br />1. Tart Lake Rd E of <br />Otter Lake Rd 2633 30 EB- 29 <br />WB- 24 <br />EB- 5.5% <br />WB- 0.4% <br />EB- 0.6% <br />WB- 0.3% <br />2. Tart Lake Rd E of <br />Lacasse Dr 1630 30 EB- 31 <br />WB- 30 <br />EB- 16.2% <br />WB- 13.0% <br />EB- 2.6% <br />WB- 2.6% <br />3. Tart Lake Rd W of <br />Elmcrest Ave*1199 30 EB- 29 <br />WB- 34 <br />EB- 5.1% <br />WB- 38.3% <br />EB- 0.4% <br />WB- 9.9% <br />*2023 data collection <br />Location Daily Volume <br />(1-day avg) <br />Posted Speed <br />Limit <br />85th %ile <br />Speed % > 30 mph % > 35 mph <br />1. Tart Lake Rd E of <br />Otter Lake Rd 1813 30 30 14.0%1.7% <br />2. Middle of Tart Lake <br />Rd 954 30 30 10.6%1.5% <br />3. Tart Lake Rd W of <br />Elmcrest Ave 739 30 31 16.9%2.4% <br />Location Daily Volume <br />(3-day avg)Speed Limit 85th %ile <br />Speed % > 30 mph % > 35 mph <br />1. Tart Lake Rd E of <br />Otter Lake Rd 1569 30 34 25.20%6.1% <br />2. Middle of Tart Lake <br />Rd 1367 30 34 36.10%10.0% <br />3. Tart Lake Rd W of <br />Elmcrest Ave 652 30 29 11.4%0.7%