We're still refining this. We will publish it under the AGPL so everyone can tinker with it outside the wrapper soon. If you want the repo now, or you're interested in collaboration, just contact here.
Or visit my GitHub page .
Open a project
Piper reads GeoPackage and GeoJSON layers from your computer, so you can draw in QGIS and test here. Files in any coordinate system are moved to local metres on open and written back in their own system on save.
Drop a .gpkg, .geojson or scenario .json file here
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Samples
Parametric elements are single pieces of a plan. Samples are whole scenarios. Open one to watch it run.
Parametric elements
Basic traffic elements with their geometry and demand on sliders.
Simple corner
One corridor turning a corner. Angle, width and leg length.
Bottleneck
A corridor narrowing to a doorway. Corridor width, opening width and depth.
Gates
A bank of fare gates. Gate count, width, service time and approach.
Stairs
One flight between two floors. Width, run, rise and climbing speed.
Escalators
A bank of escalators. Count, step width, belt speed and how many run down.
Elevators
A lift lobby. Car count and size, capacity, door hold, ride time and levels.
Samples
Whole scenarios built from traced sites.
Station
Elevated island platform: fare gates, stairs, escalators, lifts and trains both ways.
Walkway
A 100 m two-way shopping street with window stops, benches and trees.
Crossing
A signalled scramble crossing joining four corners and a pedestrian street.
Mall
Five levels and 116 stores round three courtyards, with visitors who shop and rest.
Drop-off
A forecourt off a street: kerb, car park, bike rack, zebras and walkers who get picked up.