The junction is a factor but Boris is right. Thousands of vehicles big and small negotiate that junction every day without killing cyclists but the two deaths have both been lorries and both drivers were arrested. Overall lorries account for half of London cyclist deaths and HGVs one third. But they represent less than 5% of vehicles on London's roads. So lorries are causing deaths totally out of proportion to their numbers. They are the one thing I take extra care to avoid because my experience is there is a lot of cavalier driving - many of them seem to think they are driving a sports car the way they try and throw them around the streets - and sheer lack of forethought by the drivers e.g. starting overtake manoeuvres they have no hope of completing without pulling back in on a cyclist or bouncing along just off your rear tyre. There are also appalling standards of operation. One driver has now killed twice, one was drunk and on his mobile phone when he killed a cyclist, one was busy checking his pay slips when he killed someone, another seriously needed glasses but wasn't wearing them. And when police did a spot check on lorries in the City a in 2008 the outcome was reported to the London Police Road Safety Forum as follows:
Turning to the issues of lorries, Inspector Aspinall told the meeting about a day of City of London spot checks on HGVs, carried out on 30 September 2008 as part of the Europe-wide Operation Mermaid, which is intended to step up levels of enforcement of road safety laws in relation to lorries. On this one day, 12 lorries were stopped randomly by City Police. Five of those lorries were involved in the construction work for the 2012 Olympics. All of the twelve lorries were breaking the law in at least one way. The offences range included overweight loads (2 cases), mechanical breaches (5 cases), driver hours breaches (5 cases), mobile phone use while driving (2 cases), driving without insurance (2 cases) and no operator license (1 case).
Deal with the lorries and you could halve cyclist deaths in London at a stroke.