The effects of mode perceptions on intercity mode-choice behavior in Saudi Arabia

(1994) The effects of mode perceptions on intercity mode-choice behavior in Saudi Arabia. PhD thesis, King Fahd University of Petroleum and Minerals.


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English Abstract

The traditional method of forecasting mode choice relies heavily on travel time and travel cost to explain traveller's behavior. Although, these two variables are important in mode choice, they may be inadequate in representing people's behavoir. Transportation planners may need to consider people's perceptions of travel mode in mode choice models to be able to produce reasonable forecasts. The primary objective of this research is to investigate the effect f incorporating mode perceptions into the modelling of mode choice process for intercity travel in Saudi Arabia. To achieve this objective first scales were developed and tested for the purpose of quantifying the perceptions of mode privacy, convenience, comfort and reliability using factor analysis through a pilot survey. For the purpose of testing the effects of mode perceptions, multinomial logit mode choice models were calibrated for business trips as well as social/recreational trips. The data required for calibrating the models was obtained through a survey of all major intercity cooridors in the Kingdom considering air, bus and private auto modes. The perceptual scales were confirmed by subjecting the main survey data to factor analysis. The calibration process involved two stages. First, mode-choice models were calibrated, excluding the perceptual variables and next, perceptual variables were incorporated into the previously developed models to study their effect. Among the four perceptual concepts used in the study, the perception of mode comfort was found to significantly affect the choice of the travellers for business as well as social/recreational trips. Perception of mode convenience was significant for business trips only. It was concluded from the study that the inclusion of these variables resulted in a statistically significant but marginal improvement in the explanation of the mode choice behavior. Because of the difficulty and cost in obtaining the mode perceptions, it is therefore, recommended not to included these variables in planning stages. However, they could be quite useful in identifying deficiencies of the intercity modes as perceived by travelers and therefore could help operators in improving their services.

Item Type: Thesis (PhD)
Subjects: Civil Engineering
Department: College of Design and Built Environment > Civil and Environmental Engineering
Committee Advisor: Ergun, Gokmen
Committee Members: Al-Ahmadi, H. M. and Ratrout, Nedal T. and Al-Senan, Shukri H. and Abdul-Ghani, Khaled and Ahmad, Munir
Depositing User: Mr. Admin Admin
Date Deposited: 22 Jun 2008 14:03
Last Modified: 01 Nov 2019 14:00