Transition curves shaping in a road engineering

The theory of shaping a transition curves which have employment in road and railroads is object of consideration in professional literature still. Can seem, that solutions existing in the form circled arch, clothoid and cubical parabola do not make fields for new research and investigation. It is possible to say, that everything it make in this area already and it is possible to regard this topic as historic. However, it turns out, that it does not know science limitations. Ideas of new solutions emerge still in range of satisfying by it a different criteria. From time to time knowledge turns out useful for research in this topic from relational domains greatly.