眼瞅著綠燈都變紅了，車還紋絲不動，或者僅僅在龜速前進，前面更是堵得一團糟……你開車或者坐車時遇到過讓人鬧心的“排隊溢出嗎？

Spillback is the full or partial blockage of an intersection by one or more cars that don’t make it through before the traffic lights turn red.

“排隊溢出指的是交叉路口被一輛或多輛車完全或部分堵住，導致交通燈變紅前路口一直無法通行的狀況。

Spillback occurs when a street block is so jammed with slow-moving or stopped vehicles that it has no room for any entering traffic, which frequently “spills back.

當街區擠滿緩慢前行甚至停止不動的車輛，也就沒有空間留給其他車輛駛入，這時就經常會發生“排隊溢出。

我們平時也常用queue spillback來表示下游交叉口車輛排隊蔓延至上游交叉口的交通現象。