As I mentioned in this post about bus conductresses, the main character in Yeongja's Heyday, the most popular film of 1975, worked as a bus conductress at one point before losing her arm in an accident. These screenshots should give some idea of how precarious and dangerous the job could be:
Imagine doing that job in Seoul traffic in the 1970s...
UZA (우자) : Stuck
23 hours ago