Which integrated decision is safest before taking a loaded semi-medium truck through a narrow urban route with crossings, signs, and delivery pressure?

1. Verify the vehicle and load limits, plan a lawful route and stop, drive slowly enough to yield, and refuse shortcuts that violate signs
2. Rely on the truck's size to make others yield
3. Ignore load limits because the route is short
4. Use phone navigation continuously while moving through the route