was reading this
Temporary speed limits.
You should note that exceeding a temporary speed limit is a non-endorsable offence. This means that you can only get a fine, but not have any endorsements (points) applied to your license. Of course, like most things in law, there is an exception, and in this case it's national speed limits (ie. motorways and dual carriageways). If you exceed a temporary limit on a motorway, such as in roadworks, or the controlled-speed section of the M25, then it becomes an endorsable offence, ie. points. This information is in some dispute at the moment, but came from a traffic officer undergoing basic traffic training so I have no reason to believe that it's false.

as it was a temporary limit and its not national speed limit road its usually 50 not 60