Abstract
The availability of Global Navigation Satellite Systems
enables sophisticated vehicle guidance and
advisory systems such as Intelligent Speed Adaptation
(ISA) systems. In ISA systems, it is essential
to be able to position vehicles within a road
network. Because digital road networks as well
as GPS positioning are often inaccurate, a technique
known as map matching is needed that aims
to use this inaccurate data for determining a vehicle's
real road-network position. Then, knowing
this position, an ISA system can compare the vehicle's
speed with the speed limit in effect and react
appropriately.
This paper presents an on-line map matching algorithm
with an extensive number of weighting parameters
that allow better determination of a vehicle's
road network position. The algorithm uses
certainty value to express its belief in the correctness
of its results. The algorithm was designed and
implemented for use in the large scale ISA project
"Spar p°a farten." Using test data and data collected
from project participants, the algorithm's performance
is evaluated. It is shown that algorithm performs
correctly 95% of the time and is capable of
handling GPS/DR errors in a conservative manner.
| Original language | English |
|---|---|
| Title of host publication | Proceedings from the 6th European Congress on Intelligent Transport Systems and Services, Time to Intelligent Move, 18 th -20 th June 2007 in Aalborg |
| Editors | Harry Lahrmann |
| Number of pages | 12 |
| Publisher | ERTICO |
| Publication date | 2007 |
| Publication status | Published - 2007 |
| Event | European Congress on Intelligent Transport Systems and Services, Time to Intelligent Move - Aalborg, Denmark Duration: 18 Jun 2007 → 20 Jun 2007 Conference number: 6 |
Conference
| Conference | European Congress on Intelligent Transport Systems and Services, Time to Intelligent Move |
|---|---|
| Number | 6 |
| Country/Territory | Denmark |
| City | Aalborg |
| Period | 18/06/2007 → 20/06/2007 |