Snow Plow and Water Spider Routes
A rather simple sounding but often vexing challenge that faces lean practitioners is: What is the optimal physical route for pickups and/or deliveries? This is especially true for a fixed interval, variable quantity material replenishment system design for water spider (a.k.a., waterspider, material handler, mizusumashi, etc.) conveyance.
Interestingly enough, the same question and logic applies when designing the best neighborhood snow plow route.