Abstract: Priority assumption for non-motorized vehicle or pedestrian cannot reflect the actual situation at the conflict zone of channelized islands.Therefore,this paper describes the vehicle closure effect.Based on conflict technique method,a new model to calculate the actual capacity of right-turn lane at signalized intersections with channelized islands was proposed.The factors such as the signal control,the mixed flow rate of non-motorized vehicles and pedestrians,the crossing time of non-motorized vehicle and pedestrian group,the number of a non-motorized vehicle and pedestrian group,and the width of crosswalk were considered.The new model was calibrated and tested using the field data of Fuzhou.The result shows that the proposed method can better reflect the actual operating situation of the conflict zone of channelized islands.