Carry-on rules, transfer counts, climate shifts, and laundry access change what belongs in a travel list. PackRoute turns those variables into an operational packing score with a realistic risk label.
The goal is not minimalism for its own sake. The goal is moving cleanly through the route you booked.
Estimate practical bag weight, friction level, and whether your route still fits a carry-on strategy.
When the friction score climbs, travellers usually feel it at stairs, station changes, and strict urban hotels. That is where time and money leak from the plan.
Most overpacking problems look small until a route includes stairs, transfers, or policy checks.
A bag that clears one carrier may fail on the next leg. The planner shows your working margin instead of assuming a generic rule.
Every major move multiplies the cost of extra weight. Four stations with an 11-kilogram bag feel different from one direct hotel transfer.
Mixed weather encourages defensive packing. Laundry timing and item reuse often reduce the list more effectively than a larger suitcase.