| Summary |
Pei-Chi Cheng，2007.06
Graduate Institute of Transportation Science, Tamkang University
The node-to-node dynamic route choice behavior is of the most interest to study the individual driver’s route choices under the influence of the route guidance information where individual driver makes consecutive route switch decisions along with the traveling route. This particular issue has been successfully modeled with various forms and extensions under the notion of the “Indifference Bands” applied with Probit model specifications by Tong and his students at Tamkang University in recent years. The probability of “switching” or “route choice” at each decision node along the route can therefore be estimated under these model specifications.
A concept of way-finding based in-vehicle route guidance has been proposed, where additional landmarks and/or other elements of reference to supplement the route recognition along the recommend route to complete the trip appeared on the guidance map. In this thesis, in addition to a preliminary survey to collect the individual elements of route recognition or way-finding, a two-stage comprehensive controlled experiment has been conducted where selected subjects will be examined in two comparative laboratory simulation scenarios and the results of compliance behavior will be investigated. The first scenario is to provide and update the driver the best (shortest) possible route at each decision node along entire route. From this stage, the node-to-node switching behavior model of each driver can be calibrated with the notion of the indifference band, and the compliance outcomes will be recorded. In the second stage, each individual experiment subject will be supplied with the routing strategy enhanced with elements of route recognition/way-finding at various strategic location based on the results from the preliminary survey. Finally, compliance record will be compared between these two contrasted scenarios to investigate the effect of different routing strategies. The results have demonstrated statistically significant improvement of compliance rate over conventional routing strategy for two variations of best-fitted advises provided respectively.
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