Alaska-Specific Rules and Operating Conditions
Distance and surface
Alaska highways are long and lightly served. Fuel, repairs, and cell coverage can be many miles apart, so plan fuel stops before you need them and carry winter gear year-round. Gravel routes such as the Dalton and Elliott demand lower speeds: washboard, loose gravel, and flying rocks from oncoming traffic cause windshield damage and loss of control. Expect frost heaves, soft shoulders during spring breakup, and seasonal weight restrictions on some routes.
Weather and wildlife
Winter brings ice, blowing snow, whiteout conditions, and short daylight. Use headlights whenever visibility is reduced, keep the windshield and mirrors clear, and watch for moose and caribou at dawn and dusk - a moose's dark body and long legs make it hard to see and dangerous to hit. Bridges and shaded curves stay icy long after the sun is up.
Rules of the road here
Obey flaggers, pilot cars, and avalanche or closure checkpoints. Chain-up areas exist on mountain passes; use them rather than chaining on the shoulder. Studded tires and traction devices are subject to seasonal restrictions - verify current dates. Never stop in a travel lane to take a photo or check a map.
Traps
Questions built on Lower 48 assumptions: assuming cell service, assuming the speed limit is achievable on gravel, or assuming closures are brief.
Rule of thumb
On gravel, cut your pavement speed roughly in half and stretch following distance to six to eight seconds, so you can see the road and the rocks before they reach you.