Almost certainly on 40/10 ... the attainable at 46 is also way below what should be expected from your line. 16dB suggests around about 400m, slightly longer that on the map, and it should have an attainable in the 70 to 80 region but the noise figure at 6dB points to a high noise level. What sort of businesses are there on the way?
Loads of businesses between the cab and here.
at least 3 shops, 3 takeaways, florist, ice cream place etc.
I'll get onto BT and get them to check if the service is provisioned as 40/10 or 55/10
If i put my address into the bt.com predictor I get a lowest "assured" speed of 49, so event he max attainable is below that