Geomaterials for Transportation Infrastructures

Securing Transportation-Critical Infrastructures: Trends and Perspectives

Critical infrastructure Protection (CIP) includes ensuring the resilience of transportation infrastructures. This sector is considered vital worldwide due to its economic importance and due to the various interdependencies with other infrastructures and sectors. This paper aims at examining the current state in national policies and in research regarding the protection of transport infrastructu...

Protection of Critical Complex Transportation Infrastructures

The interconnectedness of physical large-scale infrastructures, including transportation, banking and finance, telecommunications, and electric power, renders their modeling and thus their joint protection against terrorist acts a complex task. This paper explores the sources of difficulties in modeling such complex systems, and the related needs for research and development. It reviews the nee...

Piezoresistive Strain Sensors and Multiplexed Arrays for Transportation Infrastructures

Quantitative Security Risk Assessment and Management for Railway Transportation Infrastructures

Scientists have been long investigating procedures, models and tools for the risk analysis in several domains, from economics to computer networks. This paper presents a quantitative method and a tool for the security risk assessment and management specifically tailored to the context of railway transportation systems, which are exposed to threats ranging from vandalism to terrorism. The method...

Application of X-Ray CT Scanning to Characterize Geomaterials Used in Transportation Construction

Conventional visual evaluation techniques (i.e., microscopy) of geomaterials are limited to the inspection of two dimensional surfaces, leaving internal three-dimensional characteristics ambiguous or resulting in costly slice-by-slice assembly to generate three-dimensional representations. Improved X-ray–computed tomography (X-ray CT) technology now allows a sample to be analyzed nondestructive...