7Liu P, Yu H, Wang W, et al. Evaluating the impacts of signal countdown timers on queue discharge charac- teristics at signalized intersections in China [ J ]. Trans- portation Research Record, 2012, 2286:39-48.
8Yang Z, Liu P, Wang W, et al. Evaluating the opera- tional impacts of left-turn waiting areas at signalized in- tersections in China [ J ]. Transportation Research Re- cord, 2012, 2286 : 12 - 20.
9Liu P, Wan J J, Wang W, et al. Evaluating the im- pacts of unconventional outside left-turn lane design on traffic operations at signalized intersections [ J ]. Trans- portation Research Record, 2011, 2257 : 62 - 70.
10Liu P, Huang J, Wang W, et al. Effects of transverse rumble strips on safety of pedestrian crosswalks on rural roads in China [ J ]. Accident Analysis and Prevention, 2011,43(6) : 1947 - 1954.
