Launch Shaft for Metro Tunnel Under the Panama Canal

It is expected that the rail cars of Line 1 transport 15 000 commuters per hour each way during the peak traffic hours in the city. The route of Line 1 of the Metro covers the area near the Albrook...

With roughly 1.43 billion people, India has become the most populous country on earth. To accommodate the continually growing population and the increased traffic load associated with this growth,...

Chennai, a metropolis with millions of inhabitants, is the capital of the southern Indian state of Tamil Nadu. Like many large Indian cities, Chennai has had to cope with considerable population...

Chennai, a metropolis with millions of inhabitants, is the capital of the southern Indian state of Tamil Nadu. Like many large Indian cities, Chennai has had to cope with considerable population...

It is the year 1325. At the foot of mighty mountains and volcanoes such as the more than 5,000 m high Popocatépeti in the Anáhuc valley in Central America. An eagle soars through the air searching...