I recently acquired a street map of Detroit from the early 60s or thereabouts. The Detroit-Windsor tunnel is shown on the map as having the name "Fleetway Tunnel." I've never heard that name used before, nor has anyone I asked. It's always been the "Detroit-Windsor Tunnel" in any news coverage I've seen, and in conversation it's always just been "the tunnel." So, group, what's the story on the name "Fleetway?" An official business name? A colloquialism that faded away with time?