Young people and ethnic minorities will be most affected by Olympic dispersal zones

The “out of sight, out of mind” attitude to policing.

As the Olympics get underway, Stratford is unrecognisable from the place it was a year ago. The previously run down east London area, mainly consisting of a shopping centre and a dual carriageway, is full of tourists, colourful Olympics logos – and a huge number of police.

With the support of the Labour-run council, police have stepped up their activities in Newham, the borough that includes Stratford and the Olympic Park. As any visitor to the area can see, there has been a drastic increase in the number of territorial support officers in vans and foot patrols. Less visible is the imposition of a wide-ranging dispersal zone. This means that within the area, officers can move on anyone considered to be engaging in antisocial behaviour, such as loitering, begging, soliciting, or causing a nuisance.

Dispersal orders, introduced in the Anti-Social Behaviour Act 2003, give police the power to disperse groups of two or more in designated areas where their behaviour has resulted (or is likely to result) in a member of the public being harassed, alarmed, or distressed. They are controversial because of the level of discretion they accord to police and the infringement of individual rights involved.

While the Metropolitan Police has denied that the dispersal zone in Newham has been imposed merely because of the Olympics, citing instead residents concerns about crime, the timing appears to be more than fortuitous.

In 2007, the Joseph Rowntree Foundation did a study on the use and impact of dispersal orders, finding that when they were targeted at groups of youths, they can “antagonise and alienate young people who frequently feel unfairly stigmatised for being in public places.” It also found that dispersal orders tend to cause displacement, merely moving problems to a different area rather than solving them.

Of course, in the case of Newham, that may be exactly what the police want to do. China was much derided for its “social cleansing” of Beijing in 2008 but that appears to be exactly what we are seeing here. Dispersal zones give a huge amount of discretion to individual police officers, and the threshold for moving people along is very low.

And, of course, there should be little doubt that those primarily affected will be those who are already disproportionately targeted by police: young people and ethnic minorities. Anti-social behaviour orders (asbos) may be on the way out, but stop and search is alive and well and expected to form a large part of the policing of the Olympic area. Studies and official figures alike have consistently shown that ethnic minorities are excessively affected by stop and search. Last year’s riots showed that huge sections of Britain’s youth are disaffected and alienated from the police: do we really want to compound that by essentially forcing them out of their own areas?

In Stratford last night, Newham Monitoring Project, the longstanding anti-racist organisation, launched its Olympic project. It will dispatch legal observers into the community to educate young people about their rights, and to try and get a sense of how the policing operation is playing out in practice. If officers employ a dispersal order, they do not have to keep records, so it is otherwise difficult to get a sense of who is being targeted and on what grounds.

The signs outside Stratford station proclaim “Welcome to Newham! Welcome to London!” However, while London opens its doors to the world, that welcome is not, apparently, extended to our own marginalised and disaffected groups. Boris Johnson spoke this morning about a “benign virus” infecting even the most cynical with enthusiasm for the Olympics. Yet it is difficult to feel enthused when providing the perfect Olympics involves forcing people out of their own local areas because they don’t fit the image that London wants to project. Dispersal zones may provide an “out of sight, out of mind” effect for the duration of the Olympics, but the impact on already rock-bottom perceptions of the police among segments of society will last far longer.

 

People pose for a photographs as they make their way into the Olympic Stadium. Photograph: Getty Images

Samira Shackle is a freelance journalist, who tweets @samirashackle. She was formerly a staff writer for the New Statesman.

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Inside Big Ben: why the world’s most famous clock will soon lose its bong

Every now and then, even the most famous of clocks need a bit of care.

London is soon going to lose one of its most familiar sounds when the world-famous Big Ben falls silent for repairs. The “bonging” chimes that have marked the passing of time for Londoners since 1859 will fall silent for months beginning in 2017 as part of a three-year £29m conservation project.

Of course, “Big Ben” is the nickname of the Great Bell and the bell itself is not in bad shape – even though it does have a huge crack in it.

The bell weighs nearly 14 tonnes and it cracked in 1859 when it was first bonged with a hammer that was way too heavy.

The crack was never repaired. Instead the bell was rotated one eighth of a turn and a lighter (200kg) hammer was installed. The cracked bell has a characteristic sound which we have all grown to love.

Big Ben strikes. UK Parliament.

Instead, it is the Elizabeth Tower (1859) and the clock mechanism (1854), designed by Denison and Airy, that need attention.

Any building or machine needs regular maintenance – we paint our doors and windows when they need it and we repair or replace our cars quite routinely. It is convenient to choose a day when we’re out of the house to paint the doors, or when we don’t need the car to repair the brakes. But a clock just doesn’t stop – especially not a clock as iconic as the Great Clock at the Palace of Westminster.

Repairs to the tower are long overdue. There is corrosion damage to the cast iron roof and to the belfry structure which keeps the bells in place. There is water damage to the masonry and condensation problems will be addressed, too. There are plumbing and electrical works to be done for a lift to be installed in one of the ventilation shafts, toilet facilities and the fitting of low-energy lighting.

Marvel of engineering

The clock mechanism itself is remarkable. In its 162-year history it has only had one major breakdown. In 1976 the speed regulator for the chimes broke and the mechanism sped up to destruction. The resulting damage took months to repair.

The weights that drive the clock are, like the bells and hammers, unimaginably huge. The “drive train” that keeps the pendulum swinging and that turns the hands is driven by a weight of about 100kg. Two other weights that ring the bells are each over a tonne. If any of these weights falls out of control (as in the 1976 incident), they could do a lot of damage.

The pendulum suspension spring is especially critical because it holds up the huge pendulum bob which weighs 321kg. The swinging pendulum releases the “escapement” every two seconds which then turns the hands on the clock’s four faces. If you look very closely, you will see that the minute hand doesn’t move smoothly but it sits still most of the time, only moving on each tick by 1.5cm.

The pendulum swings back and forth 21,600 times a day. That’s nearly 8m times a year, bending the pendulum spring. Like any metal, it has the potential to suffer from fatigue. The pendulum needs to be lifted out of the clock so that the spring can be closely inspected.

The clock derives its remarkable accuracy in part from the temperature compensation which is built into the construction of the pendulum. This was yet another of John Harrison’s genius ideas (you probably know him from longitude fame). He came up with the solution of using metals of differing temperature expansion coefficient so that the pendulum doesn’t change in length as the temperature changes with the seasons.

In the Westminster clock, the pendulum shaft is made of concentric tubes of steel and zinc. A similar construction is described for the clock in Trinity College Cambridge and near perfect temperature compensation can be achieved. But zinc is a ductile metal and the tube deforms with time under the heavy load of the 321kg pendulum bob. This “creeping” will cause the temperature compensation to jam up and become less effective.

So stopping the clock will also be a good opportunity to dismantle the pendulum completely and to check that the zinc tube is sliding freely. This in itself is a few days' work.

What makes it tick

But the truly clever bit of this clock is the escapement. All clocks have one - it’s what makes the clock tick, quite literally. Denison developed his new gravity escapement especially for the Westminster clock. It decouples the driving force of the falling weight from the periodic force that maintains the motion of the pendulum. To this day, the best tower clocks in England use the gravity escapement leading to remarkable accuracy – better even than that of your quartz crystal wrist watch.

In Denison’s gravity escapement, the “tick” is the impact of the “legs” of the escapement colliding with hardened steel seats. Each collision causes microscopic damage which, accumulated over millions of collisions per year, causes wear and tear affecting the accuracy of the clock. It is impossible to inspect the escapement without stopping the clock. Part of the maintenance proposed during this stoppage is a thorough overhaul of the escapement and the other workings of the clock.

The Westminster clock is a remarkable icon for London and for England. For more than 150 years it has reminded us of each hour, tirelessly. That’s what I love about clocks – they seem to carry on without a fuss. But every now and then even the most famous of clocks need a bit of care. After this period of pampering, “Big Ben” ought to be set for another 100 or so years of trouble-free running.

The Conversation

Hugh Hunt is a Reader in Engineering Dynamics and Vibration at the University of Cambridge.

This article was originally published on The Conversation. Read the original article.