21453. (a) A driver facing a steady circular red signal alone shall stop at a marked limit line, but if none, before entering the crosswalk on the near side of the intersection or, if none, then before entering the intersection, and shall remain stopped until an indication to proceed is shown, except as provided in subdivision (b).

21453. (a) 单独面对一个稳定的圆形红色信号灯的驾驶员应在标记的限制线处停车，但如果没有，则在进入交叉路口近侧的人行横道之前，或者，如果没有，则在进入交叉路口之前，并且应除 (b) 小节规定的情况外，保持停止直到显示出继续进行的指示。