1998 Fiscal Year Final Research Report Summary
Analyses on Dynamic Travel Behavior under Travel Time Uncertainty and Measurement of the Effects of Travel Time Information
| Project/Area Number |
09650582
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
交通工学・国土計画
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| Research Institution | Toyohashi University of Technology |
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Principal Investigator |
HIROBATA Yasuhiro Toyohashi University of Technology, Dept.of Architecture & Civil Engineering, Associate Professor, 工学部, 教授 (60023347)
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| Project Period (FY) |
1997 – 1998
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| Keywords | uncertainty / dyamic information / travel behavior / route choice / departure time / parking choice / travel time perception / disaggregate model |
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| Research Abstract |
The purpose of this study is to analyze the car driver's behavior under travel time uncertainty and to measure the effect of the travel time information on driver behavior. In this study, based on the results of previous research, we formulate the travel behavior of car user under uncertainty. Secondly, using the travel surveys on route choice and parking choice, we analyze the dynamic travel behavior and try to measure the effect of dynamic travel information on behavior. Finally, we try to build a simulation model for measuring the overall effects of dynamic information system.
The results of the study are as follows :
(1)The previous studies concerning the travel behavior under uncertainty are reviewed and research issues in this area are summarized.
(2)Based on the random utility theory, the processes of route choice and parking choice under travel time uncertainty are formulated as two step models.
(3)Using the data of travel surveys in Toyohashi, the effects of factors on the travel time choice were analyzed. It was found that the safety margin which influences on the departure-time of travel reflects the magnitude of the loss of the schedule delay. It was also found that not only the factors which have been considered important in route choice but also other factors such as link characteristics of route affect the route choice behavior.
(4)Using the data of parking choice survey at the CBD of Toyohashi, the effects of factors on parking choice were analyzed. It was found that the dynamic provision of parking information affects the parking choice behavior both before the start of travel and en route.
(5)Framework of a simulation model was constructed in this study, but applications of the simulation model can not be implemented due to the limit of research period.
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