What is an architecture circulation diagram?
It is a graphic that shows movement through a site or building, often separating users, vehicles, services and emergency access.
A circulation diagram shows how people, vehicles, services and landscape movement pass through a project. Use Flow to draw clear routes, hierarchy and direction, tied to the real street network of your site from OpenStreetMap, without rebuilding arrows and path styles every time.

Separate pedestrian, vehicle, service, emergency and landscape circulation in one coordinated drawing.
Use arrows, path weights, soft points and graphic presets to make hierarchy readable at board scale.
Build the diagram over a plan, site image or project base rather than drawing in isolation.
Main roads and secondary streets, pedestrian streets, mapped cycle tracks and stations come straight from OpenStreetMap. On your plot it adds the fire access and a one-way loop.
Every line starts and ends at the frame or on another line, and every line carries arrows. Nothing dangles, nothing runs on top of another line, and the site is marked with a light dashed boundary.
Pick straight runs or flowing curves, three line weights and the layers you need. Click any line to move or delete it, then export PNG or SVG. It is step 04 of the one-click Site → Design set (Max).
Bring in the plan or site context you want to explain.
Trace the important movement systems and assign their type or hierarchy.
Adjust size, softness, labels and colour, then export the final diagram.
It is a graphic that shows movement through a site or building, often separating users, vehicles, services and emergency access.
Yes. The tool is designed for several circulation systems in the same project.
Yes. Routes remain editable rather than becoming a flattened generated image.
Yes. The presets and exports are intended for architecture boards and portfolios.