Hi all , I guess I didn't expressed myself very well, Our previous property was also on the main road, in fact also a A-road with 24hrs bus and emergency services. The diference was there was quite a few speed bumps and cameras. Plus we work in the city and used to heavy traffic noises. So my main concern it's really why drivers are speeding on such residential areas, specially motorbikes, and obvs if we will get used to it at night - day time is fine. I am a driver myself and when driving around the area the other weekend got bullied for driving on the speed limit! thank you for the actual constructive replies. Just wanted to see if anymore people have the same concern and found a easy solution. Anyway , the thick curtain seems to be a good idea for now, we will look into it. Have a nice week!