Abstract
On bicycle crossing zone in small intersections, the safety from collisions depends on the behaviors of cyclists and vehicle drivers.
From the survey of such bicycle crossing zone, the behaviors of cyclists, especialy the distributions of crossing possition, and the impact of accessing vehicles were clarified.
Evaluation model was built up to calculate the probability of collisions under the status of the behaviors from the survey with several assumptions about the behaviors.
Finally the effect of change of behaviors to the risks of collisions were analyzed with the simulation treatment of those behaviors for the evaluation medel. Also it was disscussed what is the safety behaviors and what is not.
