New lines markings causing danger situations

In two places in Creech st Michael (St Michael Red) new white diagonal stripes with solid line alongside road narrowing this road to one line on blind summit. Even with 20mph speed limit is very dangerous for incoming vehicles from both sides. This road is wide enough for two vehicles to pass each other but it's not safe/ possible for reversing with constant traffic if two vehicles met on hill and if they not collided yet. So this new layout it's danger. Today, one driver refused to drove alongside edge because he didn't want to drive on that new white lines. Long traffic jam caused. In my opinion those markings should be removed ASAP. If someone decided to do one single line on both directions - should place a traffic lights.