Unless people obey the laws of the road and people actively take account of the signals that we put in, there's no amount of traffic engineering that we invest in that is going to save people's lives.
Some of the cases that we've seen in the last few days really make your heart bleed because you can see that people have taken decisions that really did put their lives in danger.
You cannot blame the victim in these circumstances. But what you can say is that when people make decisions on the road that are very risky - jumping red lights, moving across fast-moving traffic in a way that is completely unexpected and without looking to see what traffic is doing - it's very difficult for the traffic engineers to second-guess that.
I'm appealing to all cyclists, as well as all motorists, do think of the laws of the road, because if you take these hasty, rash decisions that we're seeing sometimes, then you will be endangering your life.
More top news
If you are the victim of an acid attack or witness one taking place, it is important to act as quickly as possible to minimise damage.
The TSSA union has said ministers should hold an urgent meeting of the Cobra committee due to delays to Govia Thameslink Railway services.
Strikes over pay are to be held by London Underground maintenance workers in early August.