If you turn left from Beijing West Road into Yuyuan Road, you need to observe the traffic lights. The specific steps are as follows:
1. At the intersection of Beijing West Road and Yuyuan Road, you should first observe the traffic lights.
2. If the left turn indicator is green, it means that you can turn left into Yuyuan Road; If the left turn indicator is red, it means that it is forbidden to turn left, and you need to wait for the green light.
If you need to go straight, you can go straight through the intersection without waiting for the green light.
4. If you need to turn right, you need to park the vehicle in the safe area of the intersection, observe whether there is a direct vehicle on the right side, and turn right into Urumqi North Road after confirming safety.
It should be noted that it is necessary to maintain safe driving and abide by traffic rules during driving to ensure driving safety.