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From what I can see the photo was taken in Kraków, Poland? Those lines mark bus / tram stops. So definitely no parking there at any times but also it's a warning for drivers when they see a tram approaching to slow down and eventually stop because passengers will be coming on and off the tram in that area.
White zigzags are commonly found either side of pedestrian crossings. They are designed to indicate that parking and overtaking in these zones is strictly prohibited.
Sometimes it will be hard to turn left on a busy intersection cuz so much traffic coming from the opposite side. So the flash green for you to turn left while the others are stoped on the other side. So when it stop flashing then you have to wait for them to go before you can turn. You don’t have priority anymore. It’s called “priority green light”