AN ACR FLC FLYING BE1900 AT AVP FAILS TO FLY THE SID AS INSTRUCTED BY ATC.

Narrative

THERE WAS A SPECIAL OBSTACLE DEP LISTED FOR DEP RWY 22. IT STATED; 'FOLLOW THE DEPICTED DEP OR...AFTER DEP TURN TO HDG 250 DEGS AND TRACK OUTBOUND ON LVZ 287 DEG RADIAL UNTIL REACHING 3000 FT; THEN PROCEED ON COURSE.' MY FO AND I DISCUSSED THE SID AND THE OBSTACLE DEP PROC. AFTER TKOF; MY FO TURNED TO 250 DEGS AS PER THE OBSTACLE PROC; JUST AS WE WERE INSTRUCTED TO CONTACT DEP. UPON ROLLING OUT ON HDG 250 DEGS; WE RECEIVED A TFC ALERT. WE LEVELED OFF; THEN ONCE THE TFC WAS PASSED; ASSUMED CLB. UPON CHKING IN WITH DEP; THEY CONFIRMED THAT THERE WAS INDEED TFC THAT HAD PASSED NEAR US. DEP CTL QUERIED OUR DEP INSTRUCTIONS. I EXPLAINED THAT I HAD FOLLOWED THE OBSTACLE DEP. THEY LOOKED IT UP AND REPLIED THAT THEY UNDERSTOOD THE CONFUSION; BUT THEY WERE EXPECTING US TO FLY RWY HDG AS PER THE SID. THEY SAID THAT THERE WAS NO PROB. MY REASON FOR FOLLOWING THE OBSTACLE DEP WAS THAT WITH 3 MI VISIBILITY; I WOULD BE UNABLE TO ADEQUATELY SEE AND AVOID HIGH TERRAIN AFTER TKOF. I WILL TRY TO RESEARCH INTO THIS FURTHER. ACCORDING TO WILKES-BARRE APCH CTL; ONE SHOULD IGNORE ALL OBSTACLE DEP PROCS UNLESS WX IS LESS THAN 1000 FT AND 3 MI.