I cycled yesterday from central London to Leytonstone down the Mile End Road and right through Stratford. This was around 6:30pm. The traffic wasn't too bad at all, a little busier in places, but in other areas it was less congested than the average rush hour. And this was with the games lanes in active use - I reckon with a standard road layout yesterday would have been as quiet as a Sunday. Lots of pedestrians and people milling around Stratford and the paths to the park, but less chaotic than when Westfield first opened. And it was odd but the cars were avoiding the inside bus lane even though it was out of use, so my fear of having streams of cars close passing didn't happen. I expect that will change as people realise the new layout.
Bow Flyover was a bit odd, they had cordoned the inside lane off for reasons that escape me and left the other lane too narrow for cars to pass a bicycle comfortably. So all us cyclists used the cordoned off lane without incident, although the flyover was so quiet that not one car passed me whilst I was on it.
Quite a few bicycles, although it is difficult to determine if there were more cyclists or the cyclists that were there were easier to spot in the lighter traffic. The only irritation was the odd close pass on Mile End Road (normal for this road with its idiotic two narrow lanes and CSH layout) and a significant number of private coaches who seemed to believe they could use the bus lanes (can they?) and weaved in and out of the bus lanes and traffic lane to try to gain places on the traffic which was free flowing anyway. I got the distinct impression that some of the coach drivers were unused to London conditions especially with cyclists, some seemed a bit out of their depth.