Forgot to mention in original post that was pulling my two bike trailer behind my motorhome.
I was too busy trying to avoid being T-boned by the pricks that seem to think everybody will give way because they want to join the lane and space you already occupy, trying not to do the bus lanes, chequering at junctions, the speed limit and pay attention to the directions from the satnav to arrive at my destination without having reverse a trailer in dense traffic.
So no I failed to have the time to read the poxy congestion signs whilst concentrating in traffic I'm not used to having to deal with on a regular basis.
Apologies for being a feckin carrot cruncher and failing to be aware of their **** idea of saving us from ourselves, it'll never be my problem again.
I generally avoid cities like the plague and this reinforces my decision made decades ago that London is not for the likes of me.