The benefits of satellite-based navigation and Galileo particularly in the traffic and transport sector of the 21st century. Galileo should be the European answer to the dominance of the American GPS in the word of global positioning systems. Society has a high expectation of Galileo and develops today many innovative traffic and transport related applications. However, the main questions is if these applications really can be realised by means of Galileo. Research shows that it are mainly the critical applications, for example monitoring of hazardous goods transport, emergency services and ADAS, or the applications with a high risk of fraud (distance based charging) that are most vulnerable for signal lost. The reason why satellite-based navigation is not able to support these traffic and transport related applications is twofold. At first there will always be an error in the positioning signals. Secondly, the satellite signals on earth can be subject to interference from jamming. Both for the limitations of accuracy as jamming of satellite signals technical (e.g. terrestrial back-up systems like Loran-C, Cell-ID, UWB additional to satellite networks) or organisational (e.g. legislation) solutions can be developed. It is among other things the task of those who are responsible for traffic and transport related research to pay additional attention to solve these problems when developing new satellite-based traffic and transport related applications. Only in that way it will be possible to guarantee more or less the success of satellite-based navigation. (Author/publisher)
Abstract