I like street names such as this, they sound like they have some interesting heritage. The book “the Newmarket, Bury, Thetford and Cromer Road” from 1904, which is intriguing in its own right, just makes reference to this being where thieves may once have preyed on locals. But, it’s clear the author probably doesn’t know. And, I can’t find anything else about this beyond it probably being an area where some crimes had been committed long ago, giving it a bad reputation.
The tree seems to have partly consumed the sign.
And the dangerous lane…. It’s not the most prestigious of road names to live on, but it’s memorable at least.