This tunnel in Russia is reportedly the longest in-city
tunnel of Europe.
There is a river running over it and
water leaks at some points (motorists using Melbourne's
City Link tunnel will be familiar with this phenomenon).
When the temperature reaches -38 degrees like it did
during the last European winter, the road freezes and
the result is the attached video taken during a single
day with the tunnel camera.
We dip our caps to the driver
of the dual bus, how he managed to keep the thing upright