Tag Archives: ksi

photo by Selim KoryckiI see from some of the tweets from the Guardian Live cycling event that Andrew Gilligan thinks that campaigning for lorries to be banned from London, is an ‘unnecessary distraction’.  This is presumably on the grounds that we, the cycling community, have such limited resources that we can only effectively focus on one thing at a time, and at this time, that focus should be on improving the cycle network.  The lack of progress on the Quietways, when compared with the Cycle Superhighways, could probably be cited as evidence of this.

Obviously, given my campaigning background, I completely & viscerally disagree with this.

It is perfectly possible to successfully put energy into both making lorries safer, and building a comprehensive network of cycle lanes, as has been shown by the London Cycling Campaign in the 2012 London elections.  And, in my view, it is helpful, tactically, to keep pushing for a lorry ban, in exactly the same way as Andrew Gilligan initially proposed taking two lanes from motor traffic on the Embankment – he told us on Monday at the LCC Policy Forum seminar that he always intended to give one lane back, in order to appear to have listened to objections and compromised.  Push for a total ban, and then relent, and allow lorries with a direct vision cab to use London’s roads.

And for all those of you that say than banning big lorries from London is wildly impractical, Paris operates a day-time lorry ban (ok, the actual nature of the ban is a little opaque, but read this primer by Kieron Yates if you want to know more).  And Mary Beard confirmed that Julius Caesar instituted a similar ban on heavy goods vehicles in Rome, which was never repealed (ok, I’m pretty sure that Caesar didn’t have the safety of Roman citizens uppermost when he did it, but still, it’s a fun fact, isn’t it?)  I’m also disappointed to hear cycle-campaigners, who, for years & years, have listened increasingly impatiently to people saying that it was impossible to build a segregated cycle-lane network in London – the streets were too narrow, it would cause too much congestion, it would cost too much money, no-one would use it etc, etc, say that a London lorry ban is unrealistic, impossible, impractical etc, etc.

In my experience, it’s only when, to paraphrase Che Guevara, you start being unreasonable and demand the impossible, that people start to take you seriously.  And there is no better proof of this than in the lorry campaign.  Apologies if you have heard or read all this before, but it was only when I wrote to Ken Livingston and all the other candidates for Mayor of London in 2004 demanding a day-time lorry ban that serious action began on the problem of lorries killing cyclists in London.  Don’t take my word for it, ask Alastair Hanton, a long-standing LCC campaigner.  He said this to me on more than one occasion.

After all, a great deal of pressure was successfully applied, rightly, to the Mayor of London by cycling advocates using media coverage of cyclist lorry deaths, media coverage which would not have existed if it wasn’t for the continuing campaigning efforts of the LCC, Roadpeace and others.  As has been proven in the Netherlands, Denmark & Germany, well engineered cycle lanes will help to significantly reduce injury and fatalities from collisions with lorries, by making junctions safer (almost all serious collisions occur at junctions), but will NOT eliminate them.  In my view, to pretend otherwise is wrong.

Sorry, Mr Gilligan, under Boris’ leadership you have achieved great things, but on this you are wrong.


pic by Ben BrownAs I mentioned on twitter, on Monday 23rd February it will be 11 years since the death of Sebastian Lukomski, who was killed whilst working in London as a bicycle messenger by a left-turning lorry.  As 8 of the 9 London bicycle messengers known to have been killed whilst working died as the result of being run over by lorries, I have studied the hazards from to lorries to London cyclists over a number years, and campaigned for changes, notably by asking for a daytime ban on lorries in London after Seb’s death when I was chair of the London Bicycle Messenger Association. 4 people have been killed whilst cycling in London so far this year, all of whom were run over by lorries (HGVs).  In an average year, between 10 & 15 people will be killed whilst cycling in London.  I reckon that these numbers are about as low as they have been at any time since the invention of the bicycle, and are certainly as low as at any time since I started cycling in London, over 40 years ago.  The overwhelming majority of these deaths will be as the result of being run over by a lorry, which is highly likely to be working for the building trade.  Frequently, the collision will happen at a junction, at which the lorry will be turning left, as in fact seems to be the case with all 4 fatalities so far this year. The deaths have led to renewal of calls for a large scale network of segregated bicycle lanes, of the Dutch or Danish design, with Donnachadh McCarthy of Stop Killing Cyclists, organisers of ‘Die-Ins’and other actions, prominent.

Lorry risk zone - image from the London Cycling Campaign

I think it’s worth pointing out that segregated bike lanes alone will not prevent these types of collisions, and that segregation in space only is arguably likely to cause more rather than less of these types (left turning lorry runs over cyclist proceeding straight on or also turning left) of highly dangerous collisions.  This may seem counter-intuitive, but in my view, any situation where cyclists and lorries are stationary at a junction with the cyclist to the left, or, worse, with the cyclist slight ahead & to the left of the lorry, and then move away from the junction at the same time will lead to potentially deadly conflicts. Likewise, anytime you have cyclists on the left of lorries on the approach to a left-turn, there is the potential for collision, if the lorry is turning left across the path of the cyclists.

A considerable amount of work has been done to alert both cyclists and lorries to the potential dangers of left-turning lorries to cyclists, including legislating to make the fitting of the so-called ‘4th mirror’ to lorries compulsory, the Changing Places initiative, which encouraged cyclists to sit behind the wheel of a lorry, in order to demonstrate how difficult it is for drivers to see objects alongside and just in front on the left of the vehicle.

photo by Selim Korycki

The solution to the problem of bikes and lorries pulling away from lights together is, of course, to separate in time as well as space, by giving bikes their own traffic light phase, such as the lights at the junction of Agar Grove and St Pancras Way.  These were installed after Conrad DuToit was killed by a lorry, whilst using the segregated bike lane.

The problem of lorries turning left across segregated bike lanes is a little more difficult to solve. High cab lorries are inherently unsafe, even with mirrors and cameras.  At last year’s debate on sentencing in road crime cases, we were told that to check all the mirrors from behind the wheel of a high cab lorry takes several seconds, which is an eternity when manoeuvring a lorry in traffic in London, and despite apparently being fitted with all the latest safety features, including cameras, a lorry ran over and killed Claire Hitier-Abadie, the 4th person to have been killed whilst cycling in London by a lorry so far this year.

I doubt that the provision of properly separated bike lane will solve the problem.  Right hooks by lorries across cyclists are a problem in Denmark and the Netherlands, and are recognised as such by the authorities there. I am sure that building a decent network of segregated bike lanes in London will lead to an increase in people cycling, and that this is in itself is reason to do it – it is pretty clear that the much heralded cycling boom of the noughties has levelled off, and without investment in infrastructure, cycling rates in London will remain were they are – popular with a particular demographic i.e. young, affluent professionals, but not with the average shopper or commuter.  However, in my opinion, the only way to dramatically reduce the numbers of people killed whilst cycling inLondon by lorries is by completely segregating bikes from high-cab lorries, that is, ban high-cab lorries altogether from London.

LCC's Safer Lorry designThe London Cycling Campaign has challenged the construction industry to adopt its safer lorry design, but without legislation, I can’t imagine a big take-up.  As the economists say, at the moment the construction industry is able to impose a large externality, i.e. serious injury or death of pedestrians and cyclists, on society which we are forced to absorb.  The costs of road traffic injury and death are great – whether you are considering the human, social or economic implications of the death of a mother, colleague and wife such as Claire Hitier-Abadie.  I have absolutely no doubt the costs of these deaths and injuries far exceeds the cost of re-equipping the lorry fleet.  Why should the construction and building industry evade these costs completely? I see no reason to change my mind about a ban on high-cab lorries in London.

The CTC's Road Justice site has updated their post on the death of Julian Evans, who was killed in October 2012 whilst riding a bike in Suffolk, with details of the sentencing of Deborah Lumley-Holmes, who was found guilty of causing Mr Evans death by careless driving. Lumley-Holmes was found to have to have hit Mr Evans on a straight road in daylight.

Lumley-Holmes received a 6 month prison sentence, suspended for 12 months, 200 hours community service and was banned from driving for 12 months. As I said at the time when the offence of causing death by careless driving was put on the books, I have no interest in seeing drivers that have caused death in jail. However, I am very concerned that Lumley-Holmes has received only the statutory minimum driving ban allowable under the sentencing guidelines for causing death by careless driving.

And, by the way, without seeing more than the barest details of the incident, I am astonished that Lumley-Holmes' driving was NOT considered far below what would be expected of a careful and competent driver in the view of the prosecutors, and therefore was not charged with causing death by dangerous driving. Failing to see another human being in daylight & inadvertently striking them with enough force to kill them is surely not the action of a careful & competent driver.

The sentence of Lumley-Holmes and comments by the judge in his sentencing, are remarkably similar to the case of Lee Cahill, who caused the death of Rob Jeffries, an outstanding man, coach, community leader and personal friend, who was hit from behind in daylight on a straight road by a car driven by Lee Cahill. Same expressions of remorse, same suggestions that the crash was caused by a momentary lapse and a slightly longer driving ban of 18 months.

Such incredibly, well, incredible to me, short driving bans outrage me, because of the implicit message contained. My interpretation is that not being able to drive is such an impediment that even after having completely failed in the most basic duty, that of respecting the safety of other people that are sharing a public space to the fullest extent possible, i.e. by negligence having caused the death of another person, that the offenders should nontheless continue to be permitted the right to operate heavy machinery in close proximity to other people. The message is that driving a motor vehicle is an absolute right, rather than a privilege available only to those people with enough money to be able to afford it.


By Selim Korycki

A report from Transport for London's 'Safety and Sustainability Panel' on 'Cycle Safety' was published last week. In the backwards world of road traffic speak, the 'Safety' in the title actually refers to fatal danger from lorries (Heavy Goods Vehicles, also known as Large Goods Vehicle) to people cycling.

I would have missed it, had I not seen a tweet from Boriswatch: “next time Boris tries to pretend [London Assembly Member] Jenny Jones is just being silly about rates of cycling KSIs, that paper suggests TfL believe her.” This is a reference to claims that Jenny Jones made last year that the risk of injury & death whilst cycling in London had gone up under Mayor Boris Johnson's tenure. These claims were disputed by the Mayor at the time.

I would recommend that every London MP is sent a copy, or is emailed link to the report. There isn't a lot in it that is new in terms of numbers collated or trends identified, but the report is an excellent primer for anyone that isn't familiar with the topic. I don't want to reproduce too much here, as the report is relatively short, and can be read in a few minutes, unlike more technical reports.

I tweeted a couple of the salient statistics, HGV making up 6% of traffic during the morning peak, and 5% during the rest of the day, yet were involved in 53% of cycle fatalities between 2008 & 2012. These numbers won't surprise anyone who has even a passing acquaintance with the statistics on cycling fatalities in London. HGVs were identified as the number one danger to London's cyclists nearly 20 years ago, in a British Medical Journal report that I have been linking to for at least 8 years.

Also not new is the identification in the report of lorries working for builders, mainly skip or tipper lorries, being more likely than other lorries to kill cyclists. 7 out of 9 fatalities in 2011, where the collision was between a large goods vehicle and a cyclist, involved a construction lorry. In 2004 the HGV working group set up by the Mayor of London's office identified construction lorries as over-represented in cyclist fatalities.

What is new is language like this:

This research identified a systemic failing in road safety cultures within the construction sector, a lack of ownership of road risk throughout the supply chain and an imbalance between work place safety and road safety.

This is pretty strong language for an official report. There is a list of some things that need to be done, and in what looks very much like a 'to do' list for the Mayor & TfL the report suggests that

urgent attention is given to: greater enforcement of operator, vehicle and driver non-compliance of existing regulations;

I was a little bit disappointed to find that a conditional ban on HGVs was way down the same list at 'g' or 7. At least it's on the list for urgent attention. On the other hand, I take the fact that enforcement is right at the top of the list as an indication that, as I have said before, the construction hauliers do not regard compliance with regulations as anything like as important as they should do. The rules & regulations, after all, are there to keep road haulage operations safe for other road users like children, old people, people cycling, people walking, as well as people driving other motor vehicles.

I understand the pressures that the hauliers are under. I have worked in the transport sector most of my adult life. I know the margins are low, that there is constant pressure from customers to shave time & money, and that everywhere you turn someone is trying to fine you for something or other. However, Operation Mermaid, which is run by the Vehicle Operator Services Agency and police forces all over the U.K. and is virtually a random road-side MOT for HGVs, routinely show contravention rates of over 50%, which shows that there are a lot of illegal lorries out on the road.

I have some sympathy with the drivers. I am sure, as The Lorry Lawyer says, that no driver sets out to kill someone. However, the hauliers keep droning on about how professional they are, and blaming cyclists for not being sufficiently trained, or not wearing helmets etc etc.

(For an example of how the haulage industry thinks about it, have a look at the survey that was commissioned by Commercial Motor from ComRes on 'cycle safety' – do have a look at ComRes' numbers as well. The slant of the questions, offering cycle helmets, training etc as options for clearly indicates to me that the haulage industry thinks it can evade increased regulation & enforcement by blaming cyclist behaviour for the fatalities.)

The evidence from Operation Mermaid, which has been going on for years and years, suggests that hauliers routinely send out onto the roads vehicles which are not compliant with current legislation. Is this pattern of behaviour, of sending out poorly managed heavy machinery to interact with the public, consistent with claims of professionalism? Obviously, I don't think so. I would suggest that, along with greater levels of enforcement, a strategy of making the hauliers employers take responsibility for their contractor's safety record has been shown to be fruitful, taking as an example the Olympic site in east London, during the construction of which the danger from the lorries going to and from the site was taken very seriously by the builders.

At the end of the report there is a section on the Construction Logistics and Cycle Safety Project. The principle aim appears to be to get the construction industry to accept that the high cab tipper lorry is not fit to be driven around London, and to buy a design of tipper lorry which doesn't have any blind-spots at the front, rather like a conventional bus or a modern design of refuse lorry. Yes, we know it will be expensive to replace the current fleet of tipper lorries. It will be very, very expensive.

But how much does it cost when someone is killed or seriously injured by a lorry whilst cycling? I don't know, I'd be interested to see some estimates, but I bet it's a lot more than the cost of a new tipper lorry.

In closing, I don't want to overplay the dangers of riding a bike in London. If you cycle regularly, even in London, all the evidence that you will live longer than someone who does not cycle, even if you don't wear a helmet, hi-visibility clothing, and you sport high-heels and use a set of noise-cancelling head-phones playing Public Enemy's back catalogue. Cycling in London can be unpleasant, very occasionally wet & cold, but fatal & serious injuries are rare.


“..these Superhighways are central to the cycling revolution I'm determined to bring about. No longer will pedal power have to dance and dodge around petrol power – on these routes the bicycle will dominate and that will be clear to all others using them. That should transform the experience of cycling – boosting safety and confidence of everyone using the routes and reinforcing my view that the bike is the best way to travel in this wonderful city of ours.”

Boris Johnson, Mayor of London, 2009 on the launch of his Cycle Superhighways

ibikelondon has collected this and other quotes from Boris about the Cycle Superhighways, and also about the cyclist lorry problem. Read the whole post, and go along to the flash-ride tonight if you can.

I would counsel, always in the aftermath of a fatal collision, that the incident itself is not prejudged. Most sensible people were sickened by all the revolting innuendo about whether the cyclist in question was carrying shopping, whether she was wearing a helmet etc.

It is therefore wise to stick to the known facts. Women on bicycles are over-represented in fatal collisions with lorries in London. This is not a new trend. Lorries, usually construction lorries, (aka Heavy Goods Vehicles, and also called Large Goods Vehicles in the European Union), are involved of majority of collisions in which cyclists are killed. This is not a problem unique to London. In Berlin, an average of 10 cyclists are killed every year by lorries.

The junction at which the lorry (not a construction vehicle) collided with the cyclist is wide, and heavily traffic-ed, with high volumes of large goods vehicles. It has been the scene of many serious collisions, as the City of London's own map shows. I went along to a Critical Mass years ago in the mid 90s which went to the spot where a friend was killed, on the junction of Mansell Street and Aldgate High Street. This is about 20 metres from where the collision occured last Friday.

I know that there is a lot of talk about how the re-design of this junction is in hand. Don't think that just because the authorities say they are doing something about it that a little (or ideally, a lot) of encouragement from the public to get on with it won't go amiss. The only reason that the media now cover lorry deaths is because people spent time making a fuss, lighting candles and painting the roads.



Dr. Robert Davis and the remains of a City Hall buffetI went to the ‘Cyclists and the Law’ panel discussion at City Hall the other night.  It was a little disconcerting to find myself back in the cycle-campaigning fold, however slight my current association to any cycle-campaign group is.  I wasn’t surprised to see that Dr. Robert Davis is still well capable of clearing any buffet put before him, but I was pleasantly surprised to see some new faces in the otherwise familiar crowd of old friends.  The formal outcome of the evening I’ll leave for another post. (Updated: a fairly complete account of the proceedings was forwarded by Jenny Jones’ office.)  I wanted to put down some opinions and impressions.

Andrew Gilligan is very impressive.  I was initially very sceptical of his new calling, viewing his appointment as ‘cycling tsar’ (his ironic title) as a crony sinecure, and doubting his ability to make real changes, but I was very wrong.  He appears to have mastered the brief (get more people cycling), and is committed to evidence-based policy, as opposed to anecdotal subjective stuff, such as we have seen from Boris before.  As was said in our chat on the Bike Show, I estimate that this is because Boris was genuinely dismayed by how badly he was received in the cycling hustings before the last election, and realises that he has to do something serious and substantial if he is not, in the words of Sonia Purnell, to be seen to have failed London’s cyclists.  I was especially struck by the fact that Jenny Jones of the Green Party, who was chairing the discussion, was pretty fulsome in her praise of him, and Jenny is usually very selective in her use of praise.

People use statistics in a very slap-dash way, even people from a well-educated and well-briefed audience such as this.  One chap got up and said that no cyclists get killed in Paris, which is a big load of pony, complete and utter rubbish.  He used the 2011 ‘Paris 0 London 16’ canard, which I discussed in one of my first posts.  He also seemed totally unaware that 5 cyclists were reported killed in Ville de Paris in 2012 (remember that Ville de Paris is much, much smaller jurisdiction than Greater London, roughly equivalent to Zone 1).  From this I deduce that he got the numbers from the media reports last year about the garbled Paris numbers, which shows the danger of taking statistics from secondary sources, and not looking a bit harder to find out what the real story is.

I find it totally reprehensible that people use whatever dodgy number comes to hand to make a case, no matter how unreliable the number may turn out to be.

Detective Chief Superindent Wilson also used what I thought was a questionable metric to support his assertion that UK traffic police have nothing to learn from their continental counterparts about reducing road death and injury.  The metric was road deaths per head of population.  He had the UK (I think it was UK, but may have been England & Wales) at 31 per million, Germany at 49 & France at 61.   I’d like to see this number correlated against average vehicle speed, modal share, total distance travelled at the very least for a like-by-like comparison.  The number by itself is far too crude a measure to tell us anything very much.

I read somewhere (apologies for lack of source!) that France has 5 times the length of road as the UK, which seems plausible, as France is much, much bigger topographically.  With roughly the same number of vehicles, this is likely to mean much higher average speeds, which in turn is likely to lead to increased injury and death.  This is not the result of the UK’s authorities doing anything particularly clever, just the natural outcome of having congested roads on which it is not often possible to go very fast.

20 miles per hour speed limits are really important.  David Arditti thinks they are virtually irrelevant, as he has again said, to the goal of achieving mass-cycling (no need to call me ‘Chidley’, David, you can just call me ‘Bill’), but Wednesday night showed me that if you are interested in getting more people cycling, you need to support 20 mph limits.  All the walking organisations, and especially those representing special interest groups like Guide Dogs, are passionate supporters of 20 mph limits.

Darren Johnson, chair of the London Assembly, who said during the evening that there was a growing cross-party consensus in the Assembly forming behind the ‘cycling agenda’ isn’t a cyclist.  He doesn’t  use a car at all, as far as I know, but, like most Londoners, uses public transport to get around.  He is very, very concerned that the pro-cyclist agenda does not impede or impinge in any way on pedestrians and public transport users.

Clerkenwell Road looking west towards St John StreetAt some point, bicycle lanes will start to interfere with buses, if a segregated and safe bicycle path is built alongside every main road, as David Arditti is pressing for.  When the narrow width of some of London’s main roads is raised as a potential obstacle, the ‘Go Dutch’ answer is to lose a motor-carriageway, making the road 2-way for cyclists, but one way for motor traffic, and diverting the other carriageway to some other street.  As I said before, this is likely to be necessary on parts of Clerkenwell Road.  This will inevitably mean diverting buses around a longer route.  Given that the Bus must always get through, to borrow a phrase from the 1920s, at least as far as TfL seems to be concerned, this is likely to be a sticking point, and not a minor one either.  To push major alterations to the London transport network such as this through will require lots of political will and support.  Given that cycling is in a single figure minority, it will require the help of other groups apart from cyclists, such as those representing pedestrian interests.  It is therefore very, very unwise to go around saying that 20 mph limits are irrelevant or unimportant to cyclist’s interests.

The Cycle Task Force nick a lot of cyclists.  I was shocked by the numbers, really shocked.  The breakdown was 50% motor-vehicles, 26% HGV & PSVs and 24% cyclists, which seems an awful lot of cyclists, given how little injury is caused by bicycles.

I’m not suggesting that London cyclists are paragons of law-abiding road-users.  In fact, I have argued elsewhere that because the laws of the road manifestly do NOT protect law-abiding cyclists, it makes no sense to obey the law, because the laws aren’t there to keep cyclists safe, they are there to make motorists life easier.  On reflection, however, there may be something in these numbers that is really interesting.  The share may actually be yet another indicator of how many of the vehicles in central London are bicycles.  That is probably a number for someone with a very big brain, like Geography Jim, over at Drawing Rings blog to crunch.

It’s not a great idea to suggest to a bunch of hardened cycle-campaigners that they should be wearing helmets.  Kevin O’Sullivan of Levene’s solicitors suggested that it might be, and he was lucky to escape with his life.  There were howls, full-throated wails, of protest at this.  Top marks for courage, zero marks for wisdom.

In Mayor’s Question Time, May 2012, there was the following exchange:

Andrew Boff (AM)  Mr Mayor, could you ensure, along with your commitment to the key  principles of the Go Dutch campaign that London cyclists learn to obey the rule of the road as  much as they do in Holland?

Boris Johnson (Mayor of London):  … …I love  cycling; I believe in it.  But I do think that it is — look at the statistics before you cackulate in the corner, look at the statistics of the proportion of cycling Killed or Seriously Injured (KSI) who unfortunately had just committed an infraction or were in the processes of committing an  infraction at the time they had the accident.  It is very, very sad reading.

Andrew Boff (AM):  …I do think you are completely right, I think that there is an ecosystem on the streets and everybody understands that people have to obey the law and they have to obey the rules, otherwise they forfeit sympathy and I do think it  very important that people should be aware of the high proportion, I have seen a figure I think of 62%, of cycling KSIs that are associated with some infraction by the cyclist themselves of the rules of the road, and that is very sad.  Thank you, Mr Mayor.

The clear implication of the exchange is that the majority of cyclists killed or seriously injured (where is not specified, so it’s not entirely clear whether Boff ‘n’ Boris refer to London or the U.K.), were contravening the law (or possibly the Highway Code, as ‘infraction’ does not necessarily mean violating laws), and therefore in some way to blame for their own subsequent injury or death, because they were breaking the rules of the road, which are there to keep everyone safe, as the cliché has it. Andrew Boff specifically mentions red-light jumping (RLJ) immediately before, so I don’t think I’m putting words in his mouth if I say that he is implying that a lot of KSI cyclists were running lights and this was a cause of their collision.

(As an aside, Boris uses the word ‘cackulate’ in the exchange, for which word there is the following definition:  cackulating, the process of producing laughable statistics.)

This implication caused wide-spread uproar amongst cycling organisations, not least because no one recognised the number.  By no means have I spent my working life looking at KSI stats and reports on the causes of same, but I have seen a few, and all the ones I have seen suggest that the exact opposite is true, that the cyclist, in general, was blameless, and the motorist was at fault, in a majority of collisions between motor vehicle and bicycles.

The London Cycling Campaign published the following: the Mayor’s claim is strongly at odds with previous data, which shows that when adult (aged over 24) cyclists were involved in serious collisions between 2005-07, the motorist was most likely at fault in around two-thirds of cases, in their rebuttal of the statements, which also contains some fairly good sources for the numbers they quote, i.e. the Transport Research Labratory and Transport for London itself.  There was also this analysis of available data by Full Fact Check, which concluded that there weren’t the numbers to say either way, but that it looked as though it was the other way round.

At the time, everyone blamed Boris, because Boris has form when it comes to making up road traffic casualty statistics.  At the time of the 2008 mayoral election he famously described the bendy buses as ‘cyclist-killing’, and claimed that they were a menace on the roads. The latter claim was disputed, and the former was refuted.  I do worry when a senior elected official appears to be making his mind up based on anecdotal evidence, i.e. what he sees and using his ‘common sense’, as opposed to making up his mind after seeing expert analysis of actual evidence.

Eventually Jenny Jones got the following retraction from the Mayor:

Mayoral statement on cycling safety

Question No: 2450 / 2012
Jenny Jones
It has been several months since you asked Transport for London to ‘look at’ whether there was any evidence for your statement that two thirds of cycling collisions are the result of cyclists not obeying the rules of the road. What is Transport for London’s answer and will you now give a public correction?
Written response from the Mayor
I asked Transport for London to look into a statistic that I was told about during my election campaign. Its own statistics and research suggest this is not the case in London and I am pleased to be able to set the record straight on this.

Boris does seem to have rowed back on this, and given that we’re all still trying to digest the latest weighty bit of policy-making on cycle infrastructure I’ll say no more about Boris, and turn to Andrew Boff.
Andrew Boff is the original source for the 62% figure in the dialogue, not Boris, Boris just agrees with him, as seems clear from the transcript of May 2012 MQT.  When the story was bouncing around, I did feel a little sorry for Boris’ press people and others in his office who had to deal with this farrago, because, by rights, it was down to Andrew Boff to sort it out, as far as I could tell.
Today The Times carried an article about the very same topic, albeit using numbers from Westminster, not the whole of London:

More than two thirds of all crashes between drivers and cyclists in Central London are the fault of the motorist, research indicates.  The City of Westminster Council found that drivers were to blame for 68 per cent of collisions between cyclists and motor vehicles in the borough in the past 12 months.

This jogged my memory of the original exchange in MQT, and my feeling that Andrew Boff was really to blame for the row, so I decided to tweet Andrew Boff and see what he had to say:
Bill Chidley
You said the exact opposite @AndrewBoff MT @allpartycycling Crashes involving bikes in London mostly driver’s fault… …
Andrew Boff 
Bill Chidley
MQT May 2012 you said “62% cycling KSIs are associated with some infraction by the cyclist”…
Andrew Boff@BillBuffalo
My personal experience of cycling makes that not an unbelievable figure… it is far from “fault” however.
Bill Chidley
so where did “62%” come from? Or just a number you pulled out of thin air?
Andrew Boff
I’ll have to look back on the notes.

I am happy to see that he is back-pedalling on the ‘fault’ thing, but I think he’s being disingenuous: you can’t mention RLJ cyclists in one breath, and in the next breath talk about KSI stats showing that cyclists were committing an ‘infraction’ at the time of the collision without a connection being made.  In my view, he was doing what the police officer was doing the other week: cracking down on RLJing cyclists because lorries run over cyclists, i.e. totally misrepresenting the reality of road traffic casualties in London.
Andrew Boff used to be the Mayor’s Ambassador for Championing Cycling in London.  I am slightly shocked that he could be careless about such numbers.  I get statistics wrong all the time.  Lots of people do.  But most of us aren’t in receipt of public funds to sift evidence and come to decisions based on that evidence.