The provided pictures depict two road networks built under the ground for cars in Australia. Overall, there were significant differences in terms of length, depth, vehicle capacity, time for construction, and expenses.
The first tunnel was underneath a water body with a bridge across it so it was surrounded by sand. Meanwhile, the second tunnel built under the freeway in the city was covered with layers of stones and clay.
The first tunnel was constructed in 1986 and needed 12 years to complete, which was three times longer than the second one starting in 2002. When it comes to the expense, it took around 555 million dollars to finish the first road, 545 million dollars less than the second one. However, the vehicle capacity, the length, and the depth of the first road system were much smaller than the second system in which there were 4 lanes compare to 6 lanes. Also, the first road was 1, 5 meters deep and 2, 2 km long whereas there were 2, 5 meters deep and 3, 6 km long for the second picture.
The provided pictures depict two
road
networks built under the ground for cars in Australia.
Overall
, there were significant differences in terms of length, depth, vehicle capacity, time for construction, and expenses.
The
first
tunnel was underneath a water body with a bridge across it
so
it
was surrounded
by sand. Meanwhile, the second tunnel built under the freeway in the city
was covered
with layers of stones and clay.
The
first
tunnel
was constructed
in 1986 and needed 12 years to complete, which was three times longer than the second one starting in 2002. When it
comes
to the expense, it took around 555 million dollars to finish the
first
road
, 545 million dollars less than the second one.
However
, the vehicle capacity, the length, and the depth of the
first
road
system were much smaller than the second system in which there were 4 lanes compare to 6 lanes.
Also
, the
first
road
was 1, 5 meters deep and 2, 2 km long whereas there were 2, 5 meters deep and 3, 6 km long for the second picture.