PA24 PLT TAXIING ON CLOSED RWY PER INSTRUCTIONS IS TOLD HE STOPPED BEYOND A SAFE AREA FROM THE ACTIVE RWY. AN ACFT IS TOLD TO GAR. THERE ARE NO MARKINGS HOLD LINES ON THE TXWY RWY.

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WHILE AWAITING INST DEP FROM CLE AT XA00 ON APR/XX/97; THE ACFT (PA24/250) WAS TAXIED FROM FBO AT CLE; FOLLOWING TXWY J TO TXWY U; JOINING RWY 28 WITH INSTRUCTIONS TO HOLD SHORT AT RWY 23L. ARRS WERE ON RWY 23L; DEPS ON RWY 23R. THE LINE-UP OF APPROX 10 DEPARTING ACFT BEGAN ON TXWY J; PRIOR TO THE TXWY U JUNCTION. ALL ACFT WERE LARGE TURBOJETS EXCEPT THE PA24. VISIBILITY WAS GOOD. CONDITION WAS FULL DARKNESS. RWY 18/36 AND ADJACENT TXWYS WERE CLOSED WITH CONSTRUCTION. AS I APCHED RWY 23L ON RWY 28; THE PA24 WAS STOPPED AT WHAT APPEARED TO BE THE HOLD SHORT FOR RWY 23L. IT SEEMED THE SAME SPOT THAT THE IMMEDIATELY PREVIOUS ACFT; AN MD88; HAD BEEN STANDING IN. THE TWR CTLR FELT THAT THE PA24 HAD ENCROACHED ON THE RWY ENVIRONMENT; AND ASKED A SAAB ON SHORT FINAL TO GO AROUND. HE THEN TOLD ME THAT I WAS 'TOO CLOSE TO THE RWY' AND ASKED ME TO TAXI THE PA24 ACROSS TO RWY 23R. I DID SO; THEN DEPARTED RWY 23R IN SEQUENCE. CONTRIBUTING FACTORS: CONSTRUCTION MAY HAVE DISRUPTED NORMAL DEP LINE- UP PROCS. DARKNESS MADE THE TXWY AND RWY ENVIRONMENT MORE DIFFICULT TO DISCERN. UNFAMILIARITY WITH THE FIELD AND TXWYS CONTRIBUTED. CORRECTIVE ACTIONS: SHOULD FAMILIARIZE SELF WITH FIELD; HOLD SHORT LINES; RWY AND TXWY INTXNS DURING DAYLIGHT HRS. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATES THAT THERE HAS BEEN NO FAA FOLLOW-UP ON THIS INCIDENT. HE FEELS IT WAS A MATTER OF JUDGEMENT REGARDING THE SPOT ON WHICH TO HOLD TO BE CLR OF THE OTHER RWY. SINCE THE TAXI WAS ON A RWY; THERE WERE NO HOLD LINE MARKINGS. RPTR FEELS PART OF THE PROB IS THAT THERE IS SO MUCH CONSTRUCTION GOING ON AND THE RWY 18/36 IS CLOSED AS WELL AS MANY TXWYS THE TWR HAS DIFFICULTY FINDING ROOM FOR ALL ACFT. RPTR DID SEE THE ACFT ON FINAL AND BELIEVED THERE WAS NO PROB WITH HIS POS. CTLR OBVIOUSLY THOUGHT DIFFERENTLY FROM HIS PERSPECTIVE. IF THIS RWY IS TO CONTINUE TO BE USED AS A TXWY IT WOULD BE WISE TO PUT SOME HOLD LINES AT APPROPRIATE LOCATIONS.