 |
|
Publications, papers published in November 1999/communications publiées en novembre 1999
- 1
-
Mag. Barbier.
Dynamic guidance using variable message signs.
In 6th World Congress on Intelligent Transport Systems, Toronto
(Canada), 8 - 12 November 1999.
This paper describes a dynamic guidance strategy using variable
message signs and its demonstration in Toulouse City. A user needs analysis
enabled first to verify that such strategy met a requirement of both city
operators and drivers. The original strategy is then detailed, as well as its
validation by simulation (attractive results) and its good acceptance by
Toulouse drivers through a stated preference questionnaire survey. The global
routing strategy was implemented in Toulouse control centre and was
operational during two weeks. The user acceptance was evaluated the last day
through driver's interview: messages were comprehensive (93%),
recommendations were perceived useful (77%), and 11% of drivers changed
their route to travel in the recommended direction. The analysis of flows
downstream decision points highlighted significant impact for two signs in
the five controlled.
|
