I have read enough articles or Alaska State Trooper postings of injury or fatality bicycle accidents on Alaska highways enough that it would deter me from having to ride a bicycle on along the main highways - just too dangerous for my comfort with all the DUI's, cell phone-text users and speeders that drive on these roads.....I would stick to bicycling everywhere else and choose less traffic times within towns or highways if a must.
What's real nice during the annual summer wheelchair races from Fairbanks to Anchorage is they have escorted traffic control to keep the participants safe along the Parks and Glenn Highways.