Intersection is when price is on 2 or more signal/set up that points out to the same direction.
In this example:
1. Price broke the trend line resistance and retested it as a trend line support. (Buy signal)
2. Price is at horizontal support (Buy signal)
In this example:
1. Price broke the trend line resistance and retested it as a trend line support. (Buy signal)
2. Price is at horizontal support (Buy signal)