Opening the use case
Please note that after opening the case and logging in, you will need to reopen the case so that you can see the prepared layers.
Base layers are preselected: “Plzen – Traffic model”, “Plzen – Noise model”, “Plzen – Air pollution model”, “Plzen – 3D Buildings LOD2”, “Plzen – 3D Trees”and “Plzen – 3D Terrain model”.
To display the layers, click on the “Content” button in the main menu.
(If layers are not available in the “Content” menu, add them from the “Data” menu – tabs GeoJson, 3D data and Terrain data)
Closing a road and displaying simulation results
To close both traffic directions leading over the Roosevelt Bridge, click on the “Change” button in the main menu.
A new window with instructions on how to do the closure pops up – hold ctrl and click the left mouse button on the segments you want to close.
Confirm your choice and send changes. The model starts calculating new situation (besides traffic, air and noise models are calculated as well).
You will find the result of the calculation in the “Data” section of the main menu, “Traffic model results” tab. To activate the layer, click on the “+” symbol on the right side. (besides traffic model, air and noise models are calculated and appear in “Air model results” and “Noise model resuts” tab)
To see the new layer with simulation results, click on the “Content” button in the main menu. You can switch on/off other layers and investigate the result of simulation.
Creating delta layer
To see the effect of the closure on traffic, you can create a delta layer:
Click on the wheel on the right side of the “road-network-calculation-result-pilsen” layer.
A new window pops up – expand the menu “create a delta layer for simulation results” and choose the reference layer “traffic pilsen”. Confirm your choice.
Add the layer to the map and close the window.
To see the result, leave only the delta layer switched on. Green are road segments with decreased traffic, pink are those with increased traffic.