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Page 7 Midblock High Incidence Midblock Collisions were analyzed over a three-year period. A three-year time frame is used as a one-year analysis does not typically have enough collisions to identify patterns. A midblock collision is defined as a collision that occurred greater than 200 feet from an intersection (or 250 feet if it is a rear-end collision). There were six segments that had four or more midblock collisions (the four- collision threshold was chosen to analyze locations that may have more than one collision per year over the three-year period). Each of the segments was reviewed in detail to identify correctable patterns and found the following: Dublin Canyon Road from Foothill Road to Laurel Creek Drive We have identified this section of roadway on previous year’s reports. In past years there was a pattern of collisions at the westernmost curve. Additional and larger signs were installed on this curve in 2016. Only one collision appears at that location on this report. Driver speed was 65-100 MPH, well above the posted 35 MPH speed limit and the posted 25 MPH curve advisory speed. This year four of the seven collisions the vehicle left the roadway and struck an object (all different objects). When looking at the cause of those four collisions there were no patterns (DUI, fell asleep, excessive speed, swerving to avoid slowing vehicle). Action to take: Evaluate need to improve/refresh pavement markings and potentially add edge of roadway reflectors (Countermeasure R22). Owens Drive from Rosewood Drive to Hacienda Drive This location was reviewed previously with a pattern of collisions involving an eastbound left turn into the Walmart parking lot and getting broadsided by westbound through vehicles. The median hedge was limiting sight distance and trimmed multiple times. Staff considered the closure of this left turn pocket or the complete removal of the median hedge. Staff worked with the Hacienda Business Park and the hedge was trimmed to a height of 24 inches on 9/2/2022. No collisions at this location have occurred since this landscaping change. Staff recommends keeping the hedge trimmed to 24 inches and will continue to monitor this location for future collision patterns (Countermeasure NS11). No correctable patterns were identified at the remaining roadway segments.