I SAW ON 09/11/14 A LINE OF FOUR YELLOW LIGHTS IN A LINE, THE SHAPE OF THE BIG DIPPERS HANDLE.THESE LIGHTS DID NOT BLINK OR CHANGE COLOR THEY REMAINED A SOLID YELLOW LIGHT. IT COULD NOT BE THE BIG DIPPERS HANDLE BECAUSE THE LIGHTS WERE TWICE THE SIZE OF THE NORTH STAR. AS I CONTINUED TO DRIVE ON THE FREEMONT BRIDGE TOWARDS SALEM, I SAW ONE OF THE FOUR LIGHTS DIM AND THEN DISAPPEAR. THE THREE REMAINING LIGHTS SLOWLY MOVED INTO THE FORMATION OF A TRIANGLE. AFTER FORMING THIS TRIANGLE I COULD SEE THE SHAPE SLOWLY TURNING OVER PORTLAND. NO NOISE COULD BE HEARD OR NO DEFINITIVE VEHICLE OR PLANES COULD BE SEEN, ONLY THESE THREE LIGHTS WHERE THE POINTS OF THE TRIANGLE WOULD BE. AS I HIT THE SYLVAN EXIT, NO LIGHTS COULD BE SEEN ANYMORE, BUT A SMALL STATIC CAME UPON MY RADIO THAT HAS NEVER HAPPENED BEFORE PASSING THE ZOO I SAW MULTIPLE CARS ON THE SIDE OF THE ROAD POSSIBLY STOPPED TO SEE THE SAME THING.AFTER THE LIGHTS WHERE GONE I COULD SEE 3 OBJECTS THAT LOOKED LIKE PLANES FLYING IN DIFFERENT DIRECTIONS WITH A GREEN FLASHING LIGHT AND A SOLID WHITE LIGHT. ALSO SEEN WAS A RED FLASHING LIGHT THAT WAS SMALLER THEN THE NORTH STAR THAT WOULD FLASH PERIODICALLY AND THEN TURN BLACK.I CALLED THE AIRPORT AROUND 2100 AND THEY TOLD ME NOTHING HAD BEEN REPORTED.