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Complete Regional Transportation Plan 2012 - Cape Cod ...

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TABLE 1 - RTP LOCAL SAFETY PROBLEM AREAS (FROM PUBLIC COMMENT FORM)Town Location #1 Location #2Barnstable Rt 28 Main StBourne MacArthur Blvd Bike/Pedestrian SafetyEastham Rt 6 (left turns) Samoset Rd/<strong>Cape</strong> <strong>Cod</strong> Rail TrFalmouth Rt 28 Teaticket Hwy Woods Hole Rd/Locust StHarwich Rt 39/Pleasant Bay Rd Rt 28/Sisson RdMashpee Mashpee Rotary Rt 28/QuinnaquissettOrleans Rt 6A/Rt 28 Main St/Old Colony WayTruro Rt 6 (left turns) Rt 6 (passing on right)YarmouthStation Ave (between OldTownhouse Rd & Rt 6) Rt 28(Responses as of 8/23/2010)3.1.1 INTERSECTIONS OF CRITICAL SAFETY CONCERNIn 2010, the <strong>Cape</strong> <strong>Cod</strong> Commission began an effort to rank the top intersections ofcritical safety concern across <strong>Cape</strong> <strong>Cod</strong>. Before the data could be gathered and sortedinto any particular order or rank, it was necessary to specify the characteristics thatsignify an intersection as a safety concern. The Commission decided that there areseveral ways to interpret crash data – meaning, several possible ways to determine whichintersections are of highest safety concern.The <strong>Cape</strong> <strong>Cod</strong> Commission identified four methods of sorting data to create a top list ofintersections of critical safety concern:Based on Number of Crashes: Perhaps most simple method is to lookat the total number of crashes for each intersection and then rank themfrom most number of crashes to least. This method is very basic, in that itdoes not consider the severity of the crashes or the number of vehiclesusing the roadway.Based on Equivalent Property Damage Only (EPDO): Thismethod considers the severity of each intersection’s crashes. Anintersection’s EPDO value is determined using a formula that weightseach crash based on whether it included a fatality, an injury but nofatality, or property damage only. Fatal crashes are assigned a value often; injuries are assigned a value of five; and property damage onlycrashes are assigned a value of one. To determine an intersection’s EPDO,the weighted values are summed to an aggregate value. Under thismethod, the intersection with the highest EPDO value is ranked mostdangerous.Chapter 3: Safety <strong>Cape</strong> <strong>Cod</strong> <strong>Regional</strong> <strong>Transportation</strong> <strong>Plan</strong> | August 2011Page 272

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