Is this typical of Korean culture?

It isn't, it's supposed to be new rule many years ago implemented. But it seems that not many people are aware of it.

It may be more to do with Asian culture.  The Family and group attitude in Asia is far stronger in Asian cultures than in Western cultures.  An individual in Asia is thinking more about the Family or group than themselves as an individual. We in the West do the reverse and think of the individual first. Many may not agree with this at first but if you look into it deeper and consider it in broad terms it is actually very true.

Ditto! Ngoring, that was a spot-on comment. Asians certainly do have a keen sense of collective survival, beginning @ the family level, then transcending to the societal level. People take their cultural roots, everywhere they go!

Asians also have a keen sense of collective solidarity. That, perhaps explains the main reason why Asian immigrants, in the Western world, are (usually) far more financially successful, than are their local western counter-parts.

And, despite their geographical proximities, both Australia & New Zealand are definitely withstanding, as recognized western counter-part entities, within the Asian sphere.

Indeed, that scenario is characteristic of both Korean, and several other Asian societies. Thank you for sharing it.

Apparently the Koreans are aware of it, according to the way they're handling the situation, as per the video.

This is NOT an example of Asian family or group thinking!
Asians are generally not kinder towards strangers (and I assume the accident participants were not known or related to all the other drivers) than others - and in some Asian countries (e.g. China) much less so.
As Primadonna hinted above, this IS an example of following rules, which the Koreans (and some other Asians) excel at.
We have the same rule for making way for emergency vehicles in Germany, and it also works, although not as coordinated and disciplined as in Korea, because we were never drilled on strictly obeying rules without thinking.

This answer address the specific question and would appear to give a very good answer to this specific case.
I would add for interest that in the UK all drivers will, pull over, stop or get out if the way of any emergency vehicle, police or vehivpcal with blue lights flashing..
I was quite surprised to see in Indonesia, Jakarta particularly that almost all drivers totally ignore police, or other vehicles trying to get through traffic.  This is all not helped by private cars having flashing blue lights on some and seem to be switched on most ifvthe time,. This would bd illegal in the UK and most if Europe. You would get a big fine if caught displaying blue flashing lights.

There was a video taken years ago in New Delhi, India. It shows an ambulance trying to maneuver traffic, and no one seems to bother, in spite of the ambulance siren blaring. A driver even happened to come in the way of the ambulance, just to get space advantage.

Similar situation in Kuwait. Traffic cops abuse their power by simply having their sirens on, to get their way through traffic.

Indeed! Even Singaporeans have begun to backslide from their globally renown Public Health & Safety consciousness mentality, especially since Lee Kwan Yew's passing, two years ago.

I totally agree with everything you've stated, except those closing words _"because we (Germans) were never drilled on strictly obeying rules without thinking".

ARB360 wrote:

I totally agree with everything you've stated, except those closing words _"because we (Germans) were never drilled on strictly obeying rules without thinking".

O.k. - you're right, I have to change my statement:
Because we (Germans)  were never drilled on strictly obeying rules without thinking since the second world war (which ended over 70 years ago) or, in East-Germany, since reunification (1989).
I must admit it doesn't sound that convincing any more now. You have a point!