ABSTRACT
Finding one’s way (whether in real or electronic worlds) is a complex human activity. Difficulties with this everyday task often cause stress and frustration for the individual and inefficiency within travelling networks. For road vehicles, the navigational uncertainty that arises from current methods (e.g. handwritten notes, paper maps) can affect drivers’ behaviour in a number of undesirable ways. For instance, at the
manoeuvring/tactical level of the driving task, there may be an inappropriate use of indicators, sudden lane changes or late/sharp braking. In contrast, at the strategic level of driving, drivers may make poor route choices or may avoid unfamiliar environments. Older drivers in particular have been shown to consciously adapt their driving habits as a result of navigation demands (Burns, 1997).
