当车流汇聚(例如两道变一道)的时候,应该遵守什么样的规则?When traffic is merging, what is a good rule to follow?

当车流汇聚(例如两道变一道)的时候,应该遵守什么样的规则?When traffic is merging, what is a good rule to follow?
大车具有道路优先权The larger vehicle has right of way
像拉锁一样,按秩序一边一辆汇聚在一起Merge like a zip (let one vehicle in then go)
小车具有道路优先权The smaller vehicle has right of way

新西兰很多地方车流汇聚处都有Merge like a Zip的标识,指的就是左边一辆、右边一辆大家交替行驶融合到一条车道中,公平又有序。