The maps depict two different underground tunnel system for vehicle in particular two Australian regions. As the map showed, building tunnel under the sea level are tricky, its cost arm and leg on the other side manufacturing a tunnel under the sea level more value and effortless including efficiency.
Initially, underground vehicle tunnel constructed under the sea was established since 1986 to 1998 which was a long – term project. Additionally, The tunnel was constructed with 2,2 kilometers length and 1,5 meters high. This construction were involved difficult operation system when its started. However, its construction takes $555 million in cash. Only two cars were able to cross this tunnel.
Second map was showed a special tunnel system. The tunnel only took 4 years construction (2002-2006). Its 3,6 kilometers length and 2,5 meters high. However, its system was cost by $1.1 Billions. The system providing highway located under land which is affordable for three cars as well. Moreover the construction was no requires deep digging.
