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London pedestrian deaths and cycle injuries soar

(9 posts)
  • Started 11 years ago by tarmac jockey
  • Latest reply from Arellcat

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  1. tarmac jockey
    Member

    From the London Evening Standard 29 June 2012- http://www.standard.co.uk/news/london/london-pedestrian-deaths-and-cycle-injuries-soar-7899270.html -Campaigners demanded a change in road safety policies today after a 33 per cent increase in pedestrian deaths in a year and the highest number of cycling injuries for a decade.

    Transport for London admitted the figures were “an area of concern” for itself and the Mayor but critics questioned whether his policies of removing traffic lights and “smoothing traffic flow” were to blame.

    Official statistics showed 77 pedestrians were killed last year, 19 more than in 2010, while 16 cyclists lost their lives — nine the victims of turning lorries.

    The number of cycling fatalities was the biggest since 2006. There were 555 serious injuries to cyclists — up 21 per cent on last year and the highest figure since TfL records began in 2002 — and an 11 per cent rise to 3,926 in slight injuries reported by bike riders.

    The KSI (killed and seriously injured) figure TfL uses to measure its performance against road safety targets rose 22 per cent to 571 cases — more than double the nine per cent year-on-year increase in cycling on main roads.

    Cycling deaths last year included Svitlana Tereschenko, killed at Bow roundabout, and Daniel Cox, who died at Dalston Junction. In both cases, criminal prosecutions were abandoned and coroners refused to blame the lorry drivers involved because the cyclists were in their “blind spots”.

    Jenny Jones, a Green member of the London Assembly, said that since 2008 Boris Johnson had reversed a nine-year downward trend in road casualties.

    “The Mayor more than halved the road safety budget, re-phased traffic lights and told his road engineers to prioritise motorists’ journey times over the safety of vulnerable road users, so an increase was inevitable,” she said.

    Tony Armstrong, chief executive of Living Streets which wants 20mph limits across London, said: “We remain deeply concerned that measures introduced under the ‘smoothing traffic flow’ programme seem to have greater priority than road safety measures. “One area where this is having a negative impact is the removal of pedestrian crossings across the capital.”

    TfL says it is reviewing cycle safety “as a matter of urgency” but officials today ruled out any rethink of the ‘smoothing traffic flow’ policy.

    Garrett Emmerson, chief operating officer for surface transport, said: “The measures deliver benefits to all road users without compromising safety.”

    Posted 11 years ago #
  2. kaputnik
    Moderator

    I wonder if anyone has done a comparison against cycling journeys taken / journey miles to try and establish how much the actual rate of KSIs is increasing, against total number.

    Either way, it's truly shocking, and pretty good evidence to refute the simplistic argument that wthout investment in more, better and safer cycling infrastructure, more cyclists = safer cycling.

    Posted 11 years ago #
  3. alibali
    Member

    It is depressing but it shouldn't be shocking.

    Walking 100 miles has a risk of death of 6 micromorts while cycling has a risk of 5 micromorts.

    Driving 100 miles has a risk of 0.5 micromorts.

    (Figures from Understanding Uncertainty)

    So, a transfer of journeys from cars to bikes with other things remaining the same, will cause a sharp rise in deaths because the risk is 10x higher for those who switch.

    Now, if you believe (as I do) that the health benefits of cycling are significant and may even out-weight the risk of the activity (for a fat older male, to choose a random case), then a valid response to this story is to recognise the unreported but still important number of lifes saved by replacing sedentary travel with excercise.

    But it's hard to do that.

    Posted 11 years ago #
  4. crowriver
    Member

    Notwithstanding that numbers of cyclists overall may have increased, this is a very worrying trend. Maybe I won't rush to cycle in London after all.

    Posted 11 years ago #
  5. wee folding bike
    Member

    Does the car micromorts include motorways?

    Posted 11 years ago #
  6. Instography
    Member

    @kaputnik
    I did it the other day using the DfT data. When you express it as a rate the increase is less but still high at about 16% (if I remember correctly). So the risk is also increasing just not as quickly as the numbers.

    Posted 11 years ago #
  7. alibali
    Member

    Does the car micromorts include motorways?

    Yes, I think from memory that it does. And the cycling figure will probably include miles covered on segregated paths and so on.

    The figures are gross averages and your mileage may vary, as they say.

    Posted 11 years ago #
  8. Instography
    Member

    It does include motorways but I'd guess that the cycling miles only include roads because they'll have used the billion vehicle kilometres from DfT and that uses on-road counts.

    Posted 11 years ago #
  9. Arellcat
    Moderator

    A few years ago I devised my own KPI for comparing deaths amongst cyclists, pedestrians, motorbikers and car drivers. It was based on DfT stats for passenger miles per mode per year, total population of the UK who travelled per year, and deaths per mode per year and total road deaths per year.

    My danger KPI for any given year and travel mode is a dimensionless term, defined as the attrition divided by the modal distance fraction.

    i) The modal attrition is defined as modal deaths divided by total road deaths.
    ii) The modal distance is defined as modal miles divided by total road miles. For pedestrians, the road miles are calculated using projected UK population multiplied by the walking distance per person.

    The end result suggested that car and bus* occupants had the lowest danger at 0.9, pedestrians scored an average of 12.6 and cyclists scored an average of 12.4. Motorbikers in 1993 scored 30.0 but by 2007 had gone up 40.2.

    *Table 8.1 only presented deaths for pedestrians, cyclists, motorbikers and 'all other road users', so road mileages were aggregated accordingly.

    Posted 11 years ago #

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