Thanks for the comments.
I just had to add this Phuket News story...... a great picture of an incident at the bottom of Patong Hill, where I took the second picture in the first post.
A one off......? Nope. Several times I have seen trucks stopped there having lost their load. It is just a normal sort of day on Phuket roads.
And a good reason for riding a motorcycle here; to cut through traffic backed up after accidents.