This book is an outcome of the sixth conference on bearing capacity of roads and airfield held in Lisbon, Portugal. It focuses on railway tracks and covers following topics: bearing capacity policies, concepts, costs and condition surveys; analysis and modelling; design and environmental effects.

This book is an outcome of the sixth conference on bearing capacity of roads and airfield held in Lisbon, Portugal. It covers the following topics: bearing capacity policies, concepts, costs and condition surveys; analysis and modelling; design and environmental effects; and asphalt mixtures.

Design and construction of pavements and railways for high speed trains is moving from merely empirical procedures towards a more mechanistic approach based on a better constructed theoretical basis. This will facilitate the use of new materials in transportation infrastructure under various climatic and traffic (load and speed) conditions. In addition, this will lead to a future challenge to implement a common framework between road, railway and geotechnical engineers. These contributions represent an excellent source of recent developments related to the design and construction of pavements, rail tracks and earth structures with emphasis placed on geotechnical background.