open-uri20140117-3316-okmazo

Portland Regional Arterial Enhancement Project

KAI assisted five local agencies in developing upgraded signal timing plans in the new Northwest Signal Voyage Software, supporting new 2070 controllers at over 150 locations. KAI also developed, implemented, and evaluated optimized signal timing plans at over 80 intersections along the region’s busiest arterials. Evaluation was conducted using KAI's custom Bluetooth arterial travel time system, field measuring the effectiveness of the new timing plans over multiple days and time periods to demonstrate effectiveness for the region’s decision-makers. KAI also developed custom signal control logic to address specific signal timing challenges within the region related to (1) pedestrian safety with permissive left-turn movements, and (2) smarter signal progression during train preempt events.