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The objective of the digital imaging for condition asset management (DIFCAM) project was to show the feasibility of imaging and laser scanning based techniques for tunnel examination. This was successfully done by developing a demonstrator for monitoring the interior of rail tunnels, reducing or eliminating the need for track access and subjective human visual inspections. This is an example of a...
Hybrid wireless networks have been identified as a promising solution to establish communication over vehicular systems that can overcome the current and future needs for increasing public safety and efficiency. In this paper a heterogeneous hybrid vehicular wireless network consisted of IEEE 802.11b/g/e and IEEE 802.16e is being deployed inside a tunnel environment for surveillance reasons. Furthermore,...
Vehicular Network is becoming increasingly popular in recent years, Vehicle-to-Vehicle (V2V) and Vehicle-to-Infrastructure (V2I) mobile communication mode can provide great variety of feasible applications. This paper provides the architecture design of a vehicular WiMAX-WLAN network proposed for surveillance implementations on railway environment. Mainly we focus on data transmission applications...
Public transportation is vital in everyday life. As a consequence, the increasing need for intelligent surveillance systems over public transportation provides promising areas for wireless vehicular communication research for in-tunnel applications. This paper particularly emphasizes on tunnel implementation regarding to a prototype surveillance system on railway environments based on autonomous,...
The concrete health monitoring is a significant part of concrete structure construction. As an important non-destructive inspection instrument, geological radar is widely used in tunnel engineering because of the characteristics of simple operating, high resolution and visualized drawing. This paper which takes Yang Jiaba Tunnel in Lan-Yu Railway for an example provides good experience in quality...
In construction of super-long highway tunnel, because adopted some new construction method, such as center bore method, quota of it was very difficult. By BP neural network, a new quota-making method of super-long highway tunnel was put forward. Through a great many of training of data samples, quota is more related with actual consumption and it can be dynamically adjusted. The method was successfully...
Wireless broadband access for mobile applications is an area of increasing growth. An international collaboration, led by the Taiwan Industrial Technology Research Institute (ITRI), has been working to implement a dedicated WiMAX network for a user field trial on the Taiwan High Speed Rail (THSR) bullet train system. Continuous wireless coverage at train speeds up to 300 km/hr is challenging due to...
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