Abstract: The method of calculating superelevation in highway curves and its effects on vehicle dynamics and safety is of great importance in highway design. United States and German guidelines' relevant methods are presented and ...

Abstract: Preparing the grading plan of a highway and/or an intersection is an effective way to obtain a ``three dimensional'' view of the entire design area, and to check and possibly modify alignments, profiles, slopes, drainage ...

Abstract: Coordination of horizontal and vertical alignments is an important principle in road geometric design, and it should begin with preliminary design. Perspective drawings and sketches are considered to be effective means for ...

Abstract: A multitude of new technologies (ranging from guidance systems to speed-limit exceeding systems and to fatigue detection systems) are emerging, many of which are either explicitly targeted to older drivers or expected to ...