The supplied map provides data about two road tunnels in two cities in Australia.
Overall, the length is longer in the second tunnel and height is different. Moreover, other features, like width of constructions differs, and expenditure is bigger in the second road tunnel.
Initially, Tunnel A was built in the period from 1987 to 1992. The second tunnel (tunnel B) was constructed later, in the given period between 2004 and 2007. The tunnel A was 25 metres high and 2.2 kilometres long, while tunnel B was higher by 10 metres (35 metres) and longer – 3.6 kilometres.
By and large, both tunnels had twin tube as a cross section , however, tunnel B had section which is wide enough for one truck and two cars. In construction, tunnel A could have only one truck and a car. Whereas tunnel A had water source above, tunnel B was under the road. Amount of money spent is also various. As $556 million were spent on Tunnel A, a significantly bigger amount of money was spent on Tunnel B ($1.1 billion).