COMMUTER CLRED TO TAXI ACROSS RWY AND FOLLOW ASSIGNED TXWY. NOT TXWY MARKINGS ON OTHER SIDE. TXWY EXCURSION.

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ON OUTER; CLRED TO CROSS RWY 22 (ACTIVE LNDG RWY) AT FOXTROT TO JOIN BB. ACFT ENDED UP ON SW SIDE OF FOXTROT OUTSIDE OF UNLIT BLUE TXWY LIGHTS. THE CAPT STOPPED THE ACFT AND; AFTER DISCUSSING WITH ME; HE REQUESTED A 180 DEG TO REJOIN FOXTROT. GND PERMITTED US TO DO SO. CAPT WOKE UP AT 0400 AND ON DUTY SINCE 0600. FO WOKE UP AT 0600 ON DUTY AT 0800. 5 MINS PRIOR; DISCUSSED HOW TIRED WE WERE. LIGHT RAIN; CONSTRUCTION TO FOXTROT. NO PERIMETER TXWY LIGHTS; NO CTRLINE LIGHTS. NO PAINTED TXWY CTRLINE. FORWARD OF ACFT BRIGHT ROAD LIGHTS OBSTRUCTING VISION. CAPT STOPPED ACFT AND CREW DISCUSSED OPTIONS AND OBSTACLES. REQUESTED PERMISSION FROM GND. THEN WE TAXIED ACFT. ARPT SHOULD CLOSE TXWYS THAT ARE NOT DISTINGUISHABLE. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATES THE RAMP LIGHTS AHEAD OF THEM WERE A GREAT PART OF THE PROB. THERE ARE 4 LARGE LIGHTS WHICH BLIND A FLC AS THEY TAXI IN THAT DIRECTION. ALSO THE YELLOW LINE ENDED AND FLC THOUGHT IT WOULD PICK UP AGAIN AFTER THEY CROSSED THE RWY AND IT DID NOT. THE TXWY THERE TAKES A BEND BUT THERE IS NO LINE TO INDICATE IT DOES SO. THAT IS WHEN FLC TAXIED STRAIGHT AHEAD AND HAD THE MIXUP. RPTR STATED THERE SEEMS TO BE A CONSTANT STATE OF CONSTRUCTION GOING ON AND LIGHTS AND MARKINGS ARE JUST NON EXISTENT. THE NIGHT ASPECT ONLY AGGRAVATED THE SIT.