(Portland, OR)  --  The Portland Bureau of Transportation says it will implement a plan that's intended to reduce traffic-related deaths.  Officials say the plan is to install speed cameras to target aggressive drivers who are exceeding the speed limit along high-crash corridors.  The bureau says the cameras will be installed along corridors that include Beaverton-Hillsdale Highway, Marine Drive, 122nd Avenue, and Division.  The first cameras are scheduled to go online in August along Beaverton-Hillsdale Highway.