加州DMV网站的 Keep your wheels pointed straight ahead until it is safe to start your turn. If your wheels are pointed to the left and a vehicle hits you from behind, you could be pushed into oncoming traffic. A left turn against a red light can only be made from a one-way street onto a one-way street. Signal and stop for a red traffic light at the marked limit line. If there is no limit line, stop before entering the crosswalk. If there is no crosswalk, stop before entering the intersection. You may turn left into a left-moving, one-way street if there is no sign to prohibit the turn. Yield to pedestrians, bicyclists, or other vehicles moving on their green light.
21800. (a) The driver of a vehicle approaching an intersection shall yield the right-of-way to any vehicle which has entered the intersection from a different highway.
看这里关于德州交通法的网页 https://www.texashighwayman.com/laws.shtml Waiting to turn left Sometimes, you come to an intersection where you want to turn left and there's a flashing yellow arrow or a green through signal but no green arrow. You may have seen people pull into the intersection and wait to turn left there and wondered, is that legal? The answer is, yes, it is. But how is this legal when §545.302(a)(3) specifically prohibits stopping in an intersection? In this case, subsection (f) makes an exception "if the avoidance of conflict with other traffic is necessary". If you were to turn left in front of oncoming traffic, that would be conflicting with that traffic. Therefore, stopping so as to not conflict with oncoming traffic fulfills subsection (f), which then exempts you from the (a)(3) prohibition on stopping in an intersection. But if you're still in the intersection when the light turns red, wouldn't that then be considered running a red light? No, because you lawfully entered the intersection on a green and other traffic must by law allow you to clear the intersection before they can go (§544.007 (b)). So why would you want to do this? Because it reduces your wait time and helps reduce congestion. For every car that makes it through, that's one less car idling in line. The more people that do this, the more the benefit accrues. It also puts you in a better position to make a quick turn when traffic permits. And at intersections without protected left arrows on busy streets, you often have to do this if you ever want to turn. At larger intersections, sometimes two or even three cars can turn when the light turns red.
是这样，需要左转的第一辆车可以开到路中间，等对面直行结束自己再左转。at any given moment 路中间只能有一辆这样准备左转的车。这样垂直方向也最多只需要等这一辆车开走， 两个方向的交通灯变换机制是留了0.5秒让楼主这样的车离开 intersection 的，垂直方向的第一辆车本来就应该 (1) 等楼主离开，(2) double make sure 这时候没有车再闯 intersection，这需要它延迟半秒到一秒再开，to be safe
这种情况本来你做的没错，加州叫1/3 rule, 没有左转灯的地方一般只能这样。 但是要是出了事肯定是你的问题，直行车有优先路权。
别的地方不知道. 加州你有路权.
你绿灯左转要慢慢开到十字路口中间，等对面直行车辆走完了再转弯。如果遇到对面闯黄灯的车，你也要等，哪怕变红灯也不怕，只要你已经在intersection中间就可以完成左转。你左右两边的车都要等你完成左转再直行
你这是胡说八道
这怎么叫蹭，没有左转灯的时候这是常规做法，不然你说说车流不息地怎么左转？
你这样做其实没错的，我考驾照的时候还被考官说过，尤其是第一辆车必须出来，这样确保每次绿灯至少有一辆车可以左转。
理论上别人绿灯了也要等你走了才能走。但是出了事好像确实可能算你的…
别的地方不知道，加州理论上就是要探头出去的。不这样你考驾照可能过不了。
加州DMV网站的
Keep your wheels pointed straight ahead until it is safe to start your turn. If your wheels are pointed to the left and a vehicle hits you from behind, you could be pushed into oncoming traffic. A left turn against a red light can only be made from a one-way street onto a one-way street. Signal and stop for a red traffic light at the marked limit line. If there is no limit line, stop before entering the crosswalk. If there is no crosswalk, stop before entering the intersection. You may turn left into a left-moving, one-way street if there is no sign to prohibit the turn. Yield to pedestrians, bicyclists, or other vehicles moving on their green light.
怎麼可能不探頭，在大路口不只探頭，前兩台車根本都停在路中央等，除非有牌子講明白只能左轉燈時轉
胡说八道这几个字原样送给你 人听了你的被直行的撞了全责你负责么
假設樓主是南北向向北開，他要往西左轉，對面往南的車子闖紅燈，結果樓主在這個闖紅燈的過後沒趕緊過，被東西向的直行車嚇著了，說真的我也不知道要是被東西向的撞到怎麼算，沒看過這種情況，估計樓主全責
我猜是不是lz所在的路口绿灯没有delay？
看州
21800. (a) The driver of a vehicle approaching an intersection shall yield the right-of-way to any vehicle which has entered the intersection from a different highway.
一般州的法律都有规定车要让已经在intersection里面的车啊。。。
之前在佛州卡出去半个车身，被横向左转的车竖中指…
看这里关于德州交通法的网页 https://www.texashighwayman.com/laws.shtml
Waiting to turn left Sometimes, you come to an intersection where you want to turn left and there's a flashing yellow arrow or a green through signal but no green arrow. You may have seen people pull into the intersection and wait to turn left there and wondered, is that legal? The answer is, yes, it is. But how is this legal when §545.302(a)(3) specifically prohibits stopping in an intersection? In this case, subsection (f) makes an exception "if the avoidance of conflict with other traffic is necessary". If you were to turn left in front of oncoming traffic, that would be conflicting with that traffic. Therefore, stopping so as to not conflict with oncoming traffic fulfills subsection (f), which then exempts you from the (a)(3) prohibition on stopping in an intersection.
But if you're still in the intersection when the light turns red, wouldn't that then be considered running a red light? No, because you lawfully entered the intersection on a green and other traffic must by law allow you to clear the intersection before they can go (§544.007 (b)).
So why would you want to do this? Because it reduces your wait time and helps reduce congestion. For every car that makes it through, that's one less car idling in line. The more people that do this, the more the benefit accrues. It also puts you in a better position to make a quick turn when traffic permits. And at intersections without protected left arrows on busy streets, you often have to do this if you ever want to turn. At larger intersections, sometimes two or even three cars can turn when the light turns red.
似乎看州。往前太多，侧面的方向走不了，可能会吃ticket for block traffic.
感觉川流不息的地方没有左转灯是不合理的，多加一个交通左转灯大家都安全。我们那边以前很多路明明车流很多还很多没有左转灯，后来估计事故比较多渐渐都加上了。
侧面的车已经不是ni不nice的问题了，如果他们正在行驶，刹不住撞上，也算说的过去，楼主的车已经在中间了，他们是红灯变绿，不等楼主转完就撞上去，这是要闹哪样？ 这不相当于我本来停着，看见有人乱穿马路我就启动车去专门撞这个人？
是的，那人看上去就很凶的样子！我要不停住，他真可能撞上来，不幸运，遇上人渣！
怎么叫等这么长时间，我得等直行车都过去才能动不是吗？不看好了那叫反应快吗？你会开车吗？
你跟你的名字一样，你还挺有自知之明的
总算看到一个明白人回复了! 我也有早有此问. 为何第42楼才看到有人问?
你说的是惯常做法没错. 但我看到有些路确实直行川流不息, 左转的车排出长长的一队, 都在靠进入intersection的那辆车在红灯瞬间成功左转, 然后下一辆补上。 当轮到你的时候, 你决定死等就是不进入intersection, 然后把后面所有车都堵上? 当然你也可以选择等了三个红灯都转不过去, 然后换lane直行, 到一个很远的地方U turn回来. 不过这又产生一个问题, 你自己方向直行的车也川流不息, 你需要跨实白线从左转lane换到直行lane, 如果被撞了, 你就又违规了. 如果你被卡在那个左转位置动弹不得, 可能最好的选择还是进入intersection, 完成左转动作吧?
的确很多人在做，但是不对的，跟超速是一个道理
交规上肯定不允许这么做的，后面有警察时候我是不敢这么做的
你不能开出去一点点。那种压着线稍微出点头的都不能算。你要真想开，开到路口正中央。等对面直行车过去再左拐弯。
另外我探头是会探到开始左转的地方，其实会挡住一些要进的车道。这样左转的不走旁边直行的也走不了。楼主估计探了个小头但是离左转位置还挺远的，启动又慢了，头两辆车有没有可能没看到楼主
虽然楼主有安全意识多看看挺好，但在路口犹犹豫豫其实挺不安全的。闯红灯走的一瞬间就该加速过去
不论是不是直行车，都必须yield已经在intersection里面的车辆
不应该等在白线后，而是在你还有绿灯或者黄灯的时候尽量往前开，开到路口中间，等直行车过完了再左转。你要是一直等在白线后，没有左转灯的话，你永远没法左转。
这又是哪里来的民科
这个分析靠谱，lz说他没有挡住右边直行的车，说明他等的地方不够靠前，位置对的话那些车根本没法过，只能等lz过去。
我觉得楼主停的没问题。如果楼主那么靠前挡住了右边直行的车，那她就同样挡住了对面要左转弯的车。而且转弯的弧度也不够了。
想象一下，楼主要左转弯，对面的车也要左转弯。这两辆车在路中间停的相对位置，下面哪种情况是正确的： 1）楼主的车挡住她左边直行的车，她对面的转弯车挡住楼主右边直行的车； 2）楼主的车挡住她右边直行的车，她对面的转弯车挡住楼主左边直行的车；
是这样，需要左转的第一辆车可以开到路中间，等对面直行结束自己再左转。at any given moment 路中间只能有一辆这样准备左转的车。这样垂直方向也最多只需要等这一辆车开走，
两个方向的交通灯变换机制是留了0.5秒让楼主这样的车离开 intersection 的，垂直方向的第一辆车本来就应该 (1) 等楼主离开，(2) double make sure 这时候没有车再闯 intersection，这需要它延迟半秒到一秒再开，to be safe
对，我觉得楼主这个情况是横向的绿灯车的问题，应该让楼主先转过去
的确是这样的，要停在路中间等，这样另一个方向的车可以清楚地看到。因为你车是静止的，另一个方向的车如果撞你，绝对他们的过错，就好比你车停在路边违章了，但不等于其他车可以撞你的车。
看不懂楼主的描述 你前面说在交叉路口会把车往前开一点 后面又说不是十字交叉 你没有挡路 想象不出来楼主的车在什么位置
如果在交叉的路中间 那么你肯定挡路了 交叉路口的挡路车肯定有路权的啊
没挡路？那你就没有路权只能等下一轮了
路口要很大，才会出现这种情况
但是如果路口很空，人家到路口的时候速度不变（而且限速较高），而且已经绿灯了，可能无法避免撞上
都是绿灯，没有箭头的左转路权最低
绿灯无左转灯 对向右转车有优先权
无论斜交还是直角交叉 左转都要先开到路口中间 这样必然就挡住侧面来车的路了啊 等绿灯换红灯 这时你就有路权先行了
不要往前开一点，是要开到路中间等，等直行车走完了，你转。左右两边要左转的车也要让你先完成转弯，尽管他们有左转绿灯。
对向右转车有优先权。 但，如果灯已经变黄了，对向右转车可能会让已经卡在十字路口中间的左转车先走，然后自己再转。这个时候就是看右转车让不让你，司机之间的默契了。
当然，这只是正常的流程。有的时候其他人不守交通规则，那算咱倒霉。有的时候车多堵在那儿，如果警察要给blocking traffic的罚单，这也没话说。
你说得不对。虽然直行车有路权，但是在这种情况下直行车需要等其它车 cleared intersection 之后才能开始直行。
说的对！很多人都没上过驾校，对交规根本不熟。
我是停在那等着，还想怎么快，不要在哪里胡说！
就算有人闯红灯，那也是在3-5s静默期内，四边都是红灯。然后等到闯红灯的过去了，这边刚变绿，你和人家同时起步，提前10几米竟然没有赶在前面不得不让，不是慢是啥？很显然，等闯红灯的过去一脚地板油，妥妥的甩开别人几十米
你的理论是错的
楼主的情况是直行车辆闯红灯，所以楼主没时间左转。
快去好好学学交规吧，真是什么人都敢出来指导别人