PLT OF SMA IS TOLD HE TAXIED ACROSS WHITE SAFETY LINES AT CAK AS HE DISCOVERS A PROB INST AND RETURNS TO REPAIR FACILITY.

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THE SIT WAS AT CAK ON DEC/XA/97 AT XA00. THE GND CTLR SAID THAT I CROSSED WHITE SAFETY LINES DIVIDING THE TXWY FROM THE RAMP. HOWEVER; UPON LOOKING AT THE AIM; I DO NOT SEE THIS. THE REF IN THE AIM IS TO YELLOW SOLID OR BROKEN TAXI EDGE LINES. WHITE LINES ARE REFERRED TO AS GND VEHICLE AREAS. I WAS PICKING UP MY CESSNA AFTER HAVING WORK DONE AT A FBO LOCATED ON THE SE PART OF THE ARPT. AFTER STARTING THE AIRPLANE; I LISTENED TO ATIS AND THEN GOT A CLRNC TO MY HOME BASE AND THEN CALLED GND CTL. THE CLRNC FROM GND CTL WAS TO RWY 23. I DO NOT REMEMBER GETTING A PARTICULAR ROUTING. I STARTED TO TAXI DOWN TXWY G AND AS I GOT CLOSE TO TXWY A THE CTLR TOLD ME TO GIVE WAY TO ANOTHER CESSNA COMING IN THE OPPOSITE DIRECTION ON THE SAME TXWY. I DID HAVE INST APCH PLATES FOR OHIO; SO I DID HAVE THE ARPT DIAGRAM IN MY HAND. IF YOU LOOK AT THE ARPT DIAGRAM ENCLOSED; THE TRANSITION FROM TXWY G AROUND THE CONCOURSE LOOKS SMOOTH. IN FACT; THE YELLOW TAXI LINE DOES AN S-TURN TO THE L AND THEN TO THE R AT THE INTXN OF TXWY G AND TXWY A. APPARENTLY MORE RAMP AREA WAS ADDED AND TO STAY TO THE OUTSIDE OF THE RAMP; AN S- TURN IS REQUIRED. UPON RECEIVING THE CAUTION CONCERNING THE OTHER CESSNA; I MUST HAVE PROJECTED A LINE FROM WHERE I WAS -- AT TXWY G AND TXWY A -- TO ABOUT TXWY C TO CONTINUE THE TRIP AROUND THE CONCOURSE AND SUPPOSEDLY CROSSED OVER THE WHITE LINE SOMEWHERE DURING THIS RTE. AS I MOVED ALONG THIS RTE; I NOTICED THAT ONE OF THE ACFT INSTS WAS READING INCORRECTLY AND I ASKED THE CTLR FOR PERMISSION TO RETURN BACK TO THE FBO. THIS WAS GRANTED AND IT WAS AT THIS TIME THE CTLR TOLD ME THAT I DID CROSS THE SAFETY LINE. WHEN I GOT TO THE FBO; ALTHOUGH NOT ASKED TO DO SO; I CALLED THE TWR ON LANDLINE TO FIND OUT WHAT RULES I HAD APPARENTLY JUST BROKEN. AKRON WAS VERY BUSY AND THE CTLR WAS POLITE BUT BRIEF AND I FELT THAT IT WAS STILL UNCLR AS TO WHAT RULES HAD BEEN VIOLATED. THE AFTERLOOK: THE DAY WAS A WARM; NO SNOW WINTER DAY IN OHIO WITH A LOT OF FLYERS OUT. THE TIME WAS LATE AND THE SUN WAS LOW AND THERE WAS A BIT OF A HAZE. THE ARPT ENVIRONMENT HAD A VERY HIGH CONTRAST LOOK AND IT WAS VERY HARD TO SEE ANY SMALL FEATURES; ESPECIALLY LOOKING ANYWHERE INTO THE SUN. THE RAMP ON THE S SIDE OF THE TERMINAL -- WHERE I MADE THE TURN TO GO BACK TO THE FBO - - WAS VOID OF TFC. AS I RECALL; THERE WERE NO AIRPLANES THERE AND NO MOVING VEHICLES. ON THE N SIDE OF THE TERMINAL THERE WAS A PARKED AIRLINE WITH A TUG ATTACHED TO THE FRONT.