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Recorded peaks. Nighttime speeding. Main Street, Clarkston.

Main Street, Clarkston

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Main Street in Clarkston: 51.9% of nighttime passages above 30 mph, versus 10.6% by day. Night 10 PM–6 AM, day 6 AM–10 PM. March 31–April 24, 2026. Based on each passage’s recorded average speed. March 31–April 24, 2026. SlowTheFoxDown.com.

Nighttime versus daytime

A dangerous pattern after dark.

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A dangerous pattern after dark on Main Street in Clarkston.

51.9% of nighttime passages averaged above the 30 mph limit, compared with 10.6% by day — nearly five times the daytime above-limit rate. This compares the share above the limit, not a measured difference in crash risk.

Night (10 PM–6 AM): 4,113 of 7,920 passages. Day (6 AM–10 PM): 6,998 of 66,120 passages. Daytime had more above-limit passages in total. Counts include repeat trips; the first and last dates were partial.

Source: radar monitor 305290, March 31–April 24, 2026.
Full report: https://www.slowthefoxdown.com/data-report
Share the findings: https://www.slowthefoxdown.com/data-report#share

#SlowTheFoxDown #Clarkston #MainStreet #TrafficData

Highest recorded peak

77 mph recorded in a 30 mph zone.

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77 mph recorded on Main Street in Clarkston, where the posted limit is 30 mph.

That is the highest interval peak in the export, in the April 24, 2026, 6:00–6:30 AM window. It is a recorded maximum, not an average or a typical traffic speed. Source: radar monitor 305290’s original export.

Source: radar monitor 305290, March 31–April 24, 2026.
Full report: https://www.slowthefoxdown.com/data-report
Share the findings: https://www.slowthefoxdown.com/data-report#share

#SlowTheFoxDown #Clarkston #MainStreet #TrafficData

Highest nighttime peak

69 mph in the 11 PM half-hour.

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69 mph in the 11:00–11:30 PM window on Main Street in Clarkston. The posted limit is 30 mph.

The April 5, 2026, interval contains the highest recorded peak during the report’s nighttime period (10 PM–6 AM). This is an interval maximum, not the average of the 22 passages recorded in that half-hour. Source: radar monitor 305290’s original export.

Source: radar monitor 305290, March 31–April 24, 2026.
Full report: https://www.slowthefoxdown.com/data-report
Share the findings: https://www.slowthefoxdown.com/data-report#share

#SlowTheFoxDown #Clarkston #MainStreet #TrafficData

51.9% of nighttime passages averaged above 30 mph, 10 PM–6 AM, 7,920 recorded passages. Based on each passage’s recorded average speed. March 31–April 24, 2026. SlowTheFoxDown.com.

Nighttime speeding

More than half above 30 mph at night.

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After 10 PM, more than half of recorded Main Street in Clarkston passages averaged above 30 mph.

From 10 PM to 6 AM, 4,113 of 7,920 passages averaged above the limit: 51.9%. The daytime share was 10.6%. This compares rates, not the total number of above-limit passages.

Speed-limit comparisons use each passage’s recorded average speed; its peak may be higher.

Source: radar monitor 305290, March 31–April 24, 2026.
https://www.slowthefoxdown.com/
Full report: https://www.slowthefoxdown.com/data-report
Share the findings: https://www.slowthefoxdown.com/data-report#share

#Clarkston

High peaks on six different dates

60+ mph in six separate half-hours.

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The Main Street, Clarkston export records peaks of at least 60 mph in six separate half-hour intervals, on six different dates. The posted limit is 30 mph.

Apr 1, 12:00 PM: 69 mph. Apr 5, 11:00 PM: 69 mph. Apr 13, 9:00 PM: 69 mph. Apr 22, 9:30 PM: 62 mph. Apr 23, 12:00 AM: 60 mph. Apr 24, 6:00 AM: 77 mph. Times are interval starts, as recorded.

These are six of 1,122 nonempty half-hour intervals, not a count of vehicles traveling 60+ mph. Source: radar monitor 305290’s original export.

Source: radar monitor 305290, March 31–April 24, 2026.
Full report: https://www.slowthefoxdown.com/data-report
Share the findings: https://www.slowthefoxdown.com/data-report#share

#SlowTheFoxDown #Clarkston #MainStreet #TrafficData

Across 25 monitored dates

11,111 above-limit passage averages.

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11,111 above-limit passage averages. 25 monitored dates.

On Main Street in Clarkston, 15% of the 74,040 recorded passages averaged above the 30 mph limit. Counts include repeat trips; the first and last monitoring dates were partial.

Speed-limit comparisons use each passage’s recorded average speed; its peak may be higher.

Source: radar monitor 305290, March 31–April 24, 2026.
https://www.slowthefoxdown.com/
Full report: https://www.slowthefoxdown.com/data-report
Share the findings: https://www.slowthefoxdown.com/data-report#share

#Clarkston

44 separate half-hours

50+ mph peaks across 20 dates.

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50+ mph peaks appear on 20 of the 25 monitored dates on Main Street in Clarkston. The posted limit is 30 mph.

The export contains 44 separate half-hour intervals with a maximum of at least 50 mph, out of 1,122 nonempty intervals. These are interval counts, not 44 vehicles or 44 unique drivers. The first and last monitored dates are partial.

The six intervals with peaks of 60+ mph are included in these 44, so the categories must not be added. Source: radar monitor 305290’s original export.

Source: radar monitor 305290, March 31–April 24, 2026.
Full report: https://www.slowthefoxdown.com/data-report
Share the findings: https://www.slowthefoxdown.com/data-report#share

#SlowTheFoxDown #Clarkston #MainStreet #TrafficData

Main Street in Clarkston: 15% above the 30 mph limit. 11,111 of 74,040 recorded passages, March 31–April 24, 2026. Based on each passage’s recorded average speed. March 31–April 24, 2026. SlowTheFoxDown.com.

How much speeding?

15% above the posted limit.

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On Main Street in Clarkston, 15% of recorded vehicle passages exceeded the posted 30 mph limit.

That is 11,111 out of 74,040 passages recorded by our Slow the Fox Down monitor from March 31 through April 24, 2026. A local snapshot that makes the speeding conversation more concrete.

Speed-limit comparisons use each passage’s recorded average speed; its peak may be higher.

Source: radar monitor 305290. These observations do not measure a before-and-after effect of the sign.
https://www.slowthefoxdown.com/

#SlowTheFoxDown #MainStreet #TrafficData
Full report: https://www.slowthefoxdown.com/data-report
Share the findings: https://www.slowthefoxdown.com/data-report#share

#Clarkston

The data behind every post

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detailed report.

Daily counts, hourly patterns, a speed heatmap and the complete methodology. Every report card includes a visible link to SlowTheFoxDown.com.

Main report ↗Detailed report ↗

What these numbers mean

Peak cards show recorded interval maxima. Counts of 50+ or 60+ mph windows are half-hours, not counts of vehicles. The categories overlap. Source: radar monitor 305290’s original export.

Average-speed cards cover 74,040 passages, including repeat trips. First and last days are partial.

Above-limit passage rates use recorded average speeds; high-speed case cards use interval peaks. This report describes observations. It does not establish why speeds differ, measure a before-and-after effect of the sign, or determine overall road safety.

Report PDF Offline HTML Daily table CSV Source CSV Report data High-speed intervals CSV

Source: radar monitor 305290 · March 31–April 24, 2026

A dangerous patternafter dark.

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Choose a finding.Share the evidence.

A dangerous pattern after dark.

77 mph recorded in a 30 mph zone.

69 mph in the 11 PM half-hour.

More than half above 30 mph at night.

60+ mph in six separate half-hours.

11,111 above-limit passage averages.

50+ mph peaks across 20 dates.

15% above the posted limit.

Explore thedetailed report.

What these numbers mean

A dangerous pattern
after dark.

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Share the evidence.

Explore the
detailed report.