This is the 15902nd most frequent Korean word.
부산으로
"To Busan" or "toward Busan."
Here, '부산으로' signifies the directional locative to Busan, indicating purpose of travel.
나는 부산으로 여행을 갈 계획이다.
I plan to go for a trip to Busan.
In this sentence, '부산으로' shows the destination of the train.
열차가 서울에서 부산으로 출발한다.
The train departs from Seoul to Busan.
'부산으로' in this sentence indicates the target location of the moving process.