Last week, while driving in Blacktown, NSW, I encountered a situation at an intersection where I needed to turn left from a giveaway sign. The traffic light for the opposing direction (where I needed to turn) was green. This road has two lanes. As I waited, a large truck in the left lane began a left turn. However, I hesitated to start my turn because I couldn't see the second lane clearly. I reasoned that if a vehicle in the second lane (right lane) intended to change lanes abruptly, I would need to yield to that vehicle as well. If there were a collision with the lane-changing vehicle, I might be deemed at fault. Was my thinking correct?
During this pause, a driver behind me grew impatient and started honking, but I chose to ignore them. After completing my turn, the impatient driver confronted me, insisting I should have turned because the big truck was turning left. This incident left me questioning whether I was being overly cautious.
I've created a Microsoft Paint image illustrating the scenario: I was the green car (car A), and a big truck (vehicle B) was turning left from the opposite direction. It was a multi-lane road, and I refrained from turning left until I could see both lanes. If a vehicle from the second lane suddenly wanted to change lanes (depicted by the red car- car C), I wouldn't have had enough time or distance to stop my car. Do you think I was being overly cautious?
Edit: edited MS diagram New Image
Edit 2: Added Dcam video, only today I downloaded the dashcam video. I removed the audio, my toddler was singing.
You were right.