[3] The construction of the Blanka tunnel was launched back in 2006 by then mayor of Prague Pavel Bém, although it was planned since 1993.

[4] The building permit from 2004 set a condition that the tunnel must not be put into full operation, until the north-eastern part of the outer Prague Ring Road is completed.

[6] The city's leadership, led by Mayor Pavel Bém, originally promised that the tunnel would reduce traffic, noise and emissions throughout the area.

But according to the environmental association AutoMat, the amount of traffic emissions has increased and continues to exceed health limits.

The number of cars on Prague streets has increased by 11% due to induced demand, and traffic congestion has worsened.