The issue isn't just the immediate area in front of firehouses or mapping them (the data is publicly available). One issue is routing quality degradation when y

The issue isn't just the immediate area in front of firehouses or mapping them (the data is publicly available). One issue is routing quality degradation when you close off smaller streets, particularly for the lower speed cruise vehicles that can't use higher speed thoroughfares. Permanently closing 50 low speed streets would probably have a significant impact on their already questionable routing. A second issue is that there have also been incidents near active emergency scenes, which are not publicly available data.