Progress of construction technology Japan has a relatively small proportion of lowland, consisting mainly of alluvial coastal plains. Railway construction started in the early Meiji Era (1868–1912) and since the construction technology was still immature, the first lines were built in level coastal areas. The rails were laid mostly on earth structures such as embankments and cuttings. Many rail...

High-speed became a fundamental political issue in Valencia, but also a major factor in regional planning and economic attractiveness and reactivated Valencia Parque Central project, which aim is to transform disused railways into a park and to build a station and its tracks underground. This new centrality should become the focal point of the whole urban and regional transport network. The new...

CBTC (Communication Based Train Control) systems are known as comprehensive, integrated and intelligent control systems for rail systems including mainline railways, light rails and underground lines in cities. With the development of modern data communication, computer and control techniques, CBTC represents the future direction of rail control systems. At present, CBTC has been used in light ...

Ž . In this paper, we present our design of a GIS Geographic Information System to provide tourist information to visitors via the WWW. The system can help a tourist, even when he is not in Hong Kong, to find information about routes, buildings, underground railways and train stations. Further, the GIS also allows a tourist to interact with the displayed map by zooming, scrolling, panning, find...

Nowadays, underground structures play vital role in developing different countries. Such structures are constructed in many civil activities such as development of road and railways, subways, water, gas and sewage lines, underground subways, nuclear wastes land filling, fuel storage and military installations. With an appropriate drilling method being selected, instabilities created in tunnels ...

Railway transportation plays an important role in the economic development of Iran. National Iranian Railways includes fifteen regional railways which operate independently, but under the supervision of National Iranian Railways Company. Evaluating the efficiency of regional railways is an important issue in Iran and is one of the bases for budget and resource allocation for further developmen...