[youtube https://youtu.be/9pmwKJhUgaM?si=hRP-DsoGuBw6TPrs]
绿灯 Green Light
在安全的情况下，您可以通过十字路口或右转或左转，除非:
- 有禁止右转或禁止进入的标志或信号，如禁止右转或禁止进入，或
- 在交叉路口或交叉路口外的道路被堵住。
如果是右转弯，应在停止线外进入，并在不妨碍迎面而来的车辆的情况下，尽可能地前进。在十字路口内等待，直到完成转弯安全为止。
你也必须让行:
- 在上一次灯号，还在路口内的其他车辆和行人，和转弯的车辆。
- 你在左右转弯时时正在过马路的行人。
- 如果你是右转弯，则迎面而来的车辆。
[youtube https://youtu.be/Vw1wU2877Es]
绿箭头 Green Arrow
绿色的箭头，无论是单独或与其他灯一起，意味着如果安全的情况下，你可以沿着箭头的方向前进。
左转岔道 slip lane
以涂漆的安全岛或交通岛标出。在设有左转岔道处必须使用左转岔道转弯。你必须给任何行人或自行车骑行者让道，也必须给从你右侧驶来的车辆，包括在路口右转的车辆让道。
左转岔道是指左转车辆的道路区域，在某一点上被油漆岛或交通岛隔开。
Reference: http://mylicence.sa.gov.au/road-rules/the-drivers-handbook/traffic-lights
红灯 Red Light
遇上交通灯为红灯时，必须停在白线后。同时，车头不可以过白线也不可以停在白线后超过一米。如果交通灯没有白线，但有Stop here牌(图一)，必须停在牌正后方。如果没有白线或Stop here牌，则停在交通灯正后方。(这和没有白线的Stop Sign不一样)
如果没有左方向的绿箭咀Green Arrow或是左转岔道slip lane, 交通灯为红灯时绝对不能转左。
红色箭头 Red Arrow
如果你打算向箭头方向转弯，一定不能进入路口。你必须在停止线上停车。如果红色箭头熄灭，只留下绿灯，在安全的情况下，可以继续前进，但要给迎面而来的车辆和过马路的行人让路。
Reference: Australian Road Rule 56
Reference: http://mylicence.sa.gov.au/road-rules/the-drivers-handbook/traffic-lights
停车后允许在红灯下左转 Left Turn on Red Permitted after Stopping
只有在有标志牌写着 “停车后允许左转 “的地方，才允许左转。如果有这样的标志，你可以在红绿灯变绿前左转，但必须在停车线处停车，并确保安全，让出所有其他车辆和行人。
自行车存放区 Bicycle storage area
自行车存放区（自行车箱）是指在有交通信号灯的交叉路口前的道路上画有一个或多个自行车标志的区域，该区域位于两条平行的停车线之间，并从自行车道上开出。该区域可以被涂成绿色。
如果在交通信号灯前有一个自行车存放区，并显示红灯或红色箭头，机动车驾驶员不得让车辆的任何部分进入自行车存放区。
黄灯 Yellow Light
[youtube https://youtu.be/Cezc2wiOW8Q]
遇上交通灯为黄灯时，在安全及容许的情况下必须停在白线后。同时，车头不可以过白线也不可以停在白线后超过一米。详情请见上面红灯。
除非你无法安全地将车停在停止线以外，否则不能进入路口。在安全的情况下可以继续行驶，但要注意迎面而来的车辆。
Reference: Australian Road Rules 57
Reference: http://mylicence.sa.gov.au/road-rules/the-drivers-handbook/traffic-lights
Australian Road Rules 56. Stopping for a red traffic light or arrow
(1) A driver approaching or at traffic lights showing a red traffic light must stop—
(a) if there is a stop line at or near the traffic lights—as near as practicable to, but before reaching, the stop line; or
(b) if there is a stop here on red signal sign at or near the traffic lights, but no stop line—as near as practicable to, but before reaching, the sign; or
(c) if there is no stop line or stop here on red signal sign at or near the traffic lights—as near as practicable to, but before reaching, the nearest or only traffic lights,
and must not proceed past the stop line, stop here on red signal sign or nearest or only traffic lights (as the case may be) until the traffic lights show a green or flashing yellow traffic light or no traffic light.
Offence provision.
Australian Road Rules 57—Stopping for a yellow traffic light or arrow
(1) A driver approaching or at traffic lights showing a yellow traffic light must stop—
(a) if there is a stop line at or near the traffic lights and the driver can stop safely before reaching the stop line—as near as practicable to, but before reaching, the stop line; or
(b) if there is no stop line at or near the traffic lights and the driver can stop safely before reaching the traffic lights—as near as practicable to, but before reaching, the nearest or only traffic lights; or
(c) if the traffic lights are at an intersection and the driver cannot stop safely in accordance with paragraph (a) or (b), but can stop safely before entering the intersection—before entering the intersection,
and must not proceed past the stop line or nearest or only traffic lights, or into the intersection (as the case may be), until the traffic lights show a green or flashing yellow traffic light or no traffic light.
(2) A driver approaching or at traffic arrows showing a yellow traffic arrow who is turning in the direction indicated by the arrow must stop—
(a) if there is a stop line at or near the traffic arrows and the driver can stop safely before reaching the stop line—as near as practicable to, but before reaching, the stop line; or
(b) if there is no stop line at or near the traffic arrows and the driver can stop safely before reaching the traffic arrows—as near as practicable to, but before reaching, the nearest or only traffic arrows; or
(c) if the traffic arrows are at an intersection and the driver cannot stop safely in accordance with paragraph (a) or (b), but can stop safely before entering the intersection—before entering the intersection,
and must not proceed past the stop line or nearest or only traffic arrows, or into the intersection (as the case may be), until the traffic arrows show a green or flashing yellow traffic arrow or no traffic arrow.
Offence provision.
Note—
(3) If the traffic lights or traffic arrows (as the case may be) are at an intersection and the driver is not able to stop safely under subrule (1) or (2) (as the case may be) and enters the intersection, the driver must leave the intersection as soon as the driver can do so safely.
Offence provision.