How to work with node closures 
- Select the segments to be closed and fill in the details
- Review the list of involved nodes at the bottom of the closure menu. Hoover over a node's cross-street name in the list of junction nodes in order to highlight that node on the map. When a node is closed, a symbol
will appear on the map at that junction.
- Enable and disable node closures as necessary, by flipping the switch.
- Save the closures.