Spaghetti Diagram

Motion & transport waste · travel-path mapping

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What is a Spaghetti Diagram?

A spaghetti diagram traces the actual path something takes through a space — an operator on a line, a nurse on rounds, a line cook in the kitchen, even a document moving desk to desk. Draw the route on a simple map of the area and the wasted motion reveals itself as a tangle of overlapping lines, like a plate of spaghetti.

It is one of the simplest lean tools and one of the most convincing. People argue about waste in the abstract; nobody argues with the tangle once they see it.
Industry
Place
Draw path
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New to spaghetti mapping? Start by watching.

You map a spaghetti diagram by observing — following whatever moves through the process, a worker or a document. Watch it travel a real space, trace the route, and the wasted motion shows up as a tangle.

Total travel distance
0 ft
Per subject
Draw a path to measure.
Scale: grid =(20px)
Tangle
0 crossings
Trips drawn0

The signature of waste is a tangle. Each crossing and long run is travel that adds zero value — redraw the layout to straighten the strands.

Want an editable copy?

Download the free Spaghetti Diagram template — a gridded floor-plan worksheet with a movement-distance tracker to map operator or material travel. Opens in Excel and Google Sheets.

What is a Spaghetti Diagram?

A spaghetti diagram is a simple drawing that traces the actual path a person, product, or piece of information travels through a workspace. You sketch the layout — machines, desks, patient rooms, kitchen stations — then draw the real route followed during the work. The line almost always doubles back on itself, crossing again and again until it looks like a plate of spaghetti. That tangle is waste: every extra foot of walking or hand-off is transport and motion that costs time and adds nothing the customer pays for.

How to use this tool

Pick your industry to load the right objects and a worked example, place the layout to match your real space, then drag to trace the travel path. The panel measures total distance and counts the crossings so you can target a layout change — then re-trace and prove the improvement. New to it? Use Practice mode to watch a route play out and trace it live, the way spaghetti mapping is really done: by observing.