I have the Department of Transport's road speeds in front of me. They are significantly lower now than they were ten years ago. Is it not the truth that your traffic measures, such as adding bus lanes wherever you can, and rephasing traffic lights quite consistently across London - you would no doubt tell me to benefit pedestrians - has slowed up traffic? While it may be true that fewer cars are coming into London there is as much congestion as there ever was which is why we are seeing gridlock back again. You are taking with one hand and giving away with another.