> For example, the aforementioned Gotthard Road Tunnel had over 875 accidents and 30 deaths in a span of just 24 years. Pollution from congestion probably has

> For example, the aforementioned Gotthard Road Tunnel had over 875 accidents and 30 deaths in a span of just 24 years. Pollution from congestion probably has at least a similar impact in terms of premature death and debilitating disease. Edit. Down votes for stating that pollution from congestion causes premature death and serious health effects - yikes! Is that even a disputed fact? Google is full of academic papers on the very subject. The first result I see talks about congestion pricing having a massive impact in London. I would argue that congestion relief from the construction of tunnels would have a similar impact. http://oem.bmj.com/content/65/9/620.short http://oem.bmj.com/content/65/9/620.short - "Predicted benefits... were 183 years of life per 100 000 population... In London overall, 1888 years of life were gained."