The #30DayMapChallenge is going on again this November. Each day of the month has a different theme for that day's map challenge. These challenges do not have a requirement for technology, so naturally I am using OpenStreetMap data stored in PostGIS with QGIS for the visualization component.
The challenge for Day 5 was an OpenStreetMap data challenge.
I decided to find and visualize missing
crossing tags.
Crossing tags are added to the node (point) where a pedestrian
highway (e.g. highway=footway) intersects a motorized highway
(e.g. highway=tertiary).
This post explains how I used PostGIS and OpenStreetMap data to
find intersections missing a dedicated crossing tag.
Without further ado, here was my submission for Day 5.
