Right off the top full credit for map goes to Carys Mills of the Citizen for her article on stop sign requests in Ottawa. Along with the article she shared the raw data, which included the intersection names, i.e. "Maravista Drive and Cedarview Road".
Using Ottawa's roadways opendata file and some php, I was able to add latitude/longitude to most of the data, leaving only 10 or so to do by hand (a few are still missing). Google fusion tables did the rest. So enjoy the map, but go read the article too.
Full size maps can be seen here.
Here's the same data, but as a heatmap: