Abstract:
The objective of this research is to study the important factors affecting the decision on bicycle usage in
the short-distance trips. Questionnaire surveys of weight of various factors were carried out in the
shared-use paths in eight communities in Bangkok. The related factors obtained from questionnaire
surveys were grouped by using the Factor Analysis Method. The overall 45 factors were categorized
into 13 groups to develop the bicycle usage model based on the Logistic Regression Analysis Method.
The model was divided into two models: the model of the bicycle user group and the model of not using
bicycles group. It was found that there were two main factors affecting the cycle usage in the bicycle
user group: 1) traveling behavior factors which included travel cost, travel time, and travel distance; and
2) traveler characteristic factors which included a number of members in a household and vehicle
occupancy. For the group of people not using bicycles, not only these two factors, but also the cycling
promotion plans and legislation related to the bicycle usage influenced the decision of bicycle usage.
The relevant promotion plans were: 1) establishing the specific cycling organization; 2) setting a
cycling plan in each district; 3) providing the privilege for cyclists; 4) preparing the related facilities for
cyclists such as bathrooms and storage lockers; and 5) constructing the exclusive bikeway networks
around Bangkok.