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Page 8 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 in 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: Pavement striping was evaluated last year and found to be adequate. This roadway is due to be resurfaced later this year. We will look for opportunities to put in new striping to add extra notification of curves in roadway (Caltrans countermeasures R22). Sunol Boulevard from Sonoma Drive to Applied Biosystems/Sycamore Road Two of the five collisions involved a southbound left turning vehicle into the cemetery. No other patterns were identified. Action to take: Evaluate sight distance of left turn pocket (Caltrans countermeasure NS11)