Investigating consecutive conflicts of pedestrian crossing at unsignalized crosswalks using the bivariate logistic approach

•Consecutive conflicts (CCs) of pedestrians at unsignalized crosswalks are investigated.•ISI that combines PET, jerk and YRR is proposed to measure the conflict severity.•Bivariate logistic models are developed to account for correlation within CCs.•P-MV conflict and P-NV conflict of a CC are negatively correlated.•Speed, TTZ, vehicle count, direction and group have significant effects on CC’s severity.