After reading the subsequent posts in this thread I can say that there is no way in hell I would do this commute. Cycling is supposed to be fun and this road would kill the enjoyment. At most I would ride a motorcycle but more likely drive. Kudos to you if you continue but it is no harm if you throw the towel in. You still have recreational rides.
To me cycling is about manageable risk. This one is not manageable to me.