Has Britain reached “peak car”?

More and more people are using public transport to get from one place to another.

"We will end the war on motorists," the Transport Secretary, Philip Hammond, declared when the coalition took office. "Motoring has got to get greener but the car is not going to go away."

In the literal sense, Hammond is correct. The car in one form or another is here to stay and his department currently bases all of its projections on the assumption that car use will grow for ever.

And yet the growth in the number of miles and trips each of us drives began to slow in the early to mid-1990s, during the dog days of the last Conservative government. This trend became even more pronounced in the early 2000s, and since 2005 – notably before the recession and recent fuel price spikes – car use started to decline. Britain has already seen what transport policy wonks call "peak car".

Source: IPPR, using data from the National Travel Survey

The transport guru Professor Phil Goodwin, of the University of the West of England, points out that other, once-dominant modes of transport, such as railways, have also enjoyed what at the time would have looked like unending growth and then suffered what in hindsight was an inevitable decline.

So why not the car?

The motoring lobby will argue that, even in the era of peak car, almost 80 per cent of journeys are taken using private rather than public transport. While this is true, and suggests that only a fool would wage war on the motorist, there has been a small but symbolic shift in favour of buses and trains.

But peak car is arguably less about us switching from the car to the bus or the train to get from A to B and more about changes in society and attitude.

Researchers have only a fragmented picture of why peak car is happening and it's our job to find out more. But one of its most interesting aspects is that young people are more responsible for the trend than other age groups.

Indeed, it seems fewer young people nowadays harbour the ambition to drive. Between 1992 and 2007, the proportion of 17-to-20-year-olds holding a driving licence fell from 48 per cent to 38 per cent and that of 21-to-29-year-olds from 75 per cent to 66 per cent (note this is a PDF – see page 27).

The costs of motoring are doubtless a factor. For instance, according to an AA study, the average annual cost of car insurance for a 17-to-22-year-old man is £2,457. But young people aren't simply swapping cars for buses or bikes; they are choosing to own and use other technology instead, such as smartphones and tablet computers.

Significantly, the use of these technologies while driving is not only against UK law, but also difficult. A recent survey of college students in Colorado (where sending messages from smartphones while driving is not illegal) found that while 75 per cent of users said they often used their phones while travelling by bus, train or as a passenger in a car, only 10 per cent of them said they did so while driving a car.

We need to know more about peak car. Cutting carbon emissions from transport will be easier to achieve if we're working with the grain of people's behaviour rather than against it. But more important still is the implied shift in the politics.

Even in the era of peak car, it seems like a stretch, but if driving were to go the way of trains and buses, then fighting or ending the war on motorists may in the end prove a lot less significant.

Andrew Pendleton is associate director at IPPR on climate change, transport and energy.

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Tetris and sleep deprivation: how we can help emergency workers cope with trauma

First responders are at serious risk of developing PTSD during events like the Paris attacks. 

Some people seem able to deal with anything. They save a stranger from bleeding out in a bombed restaurant, protect passers-by from heavily armed gunmen, pull dead and dying people out of collapsed buildings, and they keep going because it is their job. These people are first responders.

When trauma goes on for days, as it has recently in Paris, however, the odds of them bouncing back from the violence, death and injury they are witnessing rapidly diminishes. They are at greater risk of developing a severe stress reaction known as post-traumatic stress disorder (PTSD). One study found that the worldwide rate of PTSD among first responders is 10 per cent, much higher than the 3.5 per cent rate among those not involved in rescue work.

Tetris to the rescue

So how best to address the problem? Research is in its infancy, but there are some promising studies. Emily Holmes’ group at the University of Cambridge has been looking at the benefits of playing Tetris, a video game, after a traumatic experience. The idea is that this could block the consolidation of traumatic memories so they don’t “flash back” later on.

For the study, her team first traumatised people by showing them distressing footage from public safety videos. The next day they invited them back into the lab to reactivate the memories with still images taken from the videos. One group then played Tetris for 12 minutes while the other sat quietly. Over the following week, the group who played Tetris had about 50 per cent fewer unwanted memories from the films compared to the group who didn’t.

The team concluded that playing Tetris helped individuals because it soaks up their visual processing capacity, making it harder for the brain to consolidate the visual parts of a traumatic memory.

Since it takes about six hours for the brain to cement a memory, the key is to play the game soon after trauma or within six hours of re-activating the traumatic memory. How long the helpful effects of playing Tetris will last and whether it will translate into helping people after real-life trauma is still unknown.

Talking it through

Other techniques, such as “updating”, taken from a highly-effective talking treatment for PTSD, may be more practical and easier to implement.

Like a detective, updating is a technique that focuses on finding new information and linking it to the case, the past memory. This is necessary because when the brain and body are in survival mode during trauma, the mind finds it difficult to encode all the relevant facts. Often key pieces of information that could make the memory less traumatic are lost. Updating links new information to someone’s memory of their trauma to make it less upsetting.

But can updating help to reduce unwanted memories after trauma?

We carried out a study, published in PLOS ONE, in which we traumatised people by showing them terrifying films of humans and animals in distress. We then divided our participants into three groups. One group watched the films again but were given new information about how long people suffered and whether or not they lived or died – essentially, they were updated. The second group watched the same films again but without the new information. And the third group watched films of humans and animals who were not in distress. The updated group had fewer traumatic memories and PTSD symptoms than the other two groups.

Updating is now being used by some UK emergency services. First responders will gather after critical incidents and update their memories of what happened before they go home.

Sleep deprivation

There are other techniques that may be helpful. One study found that depriving people of sleep may be useful in the aftermath of trauma.

But the same study found that a week after the trauma, people who had been deprived of sleep had the same number of unwanted memories as people who had slept well afterwards. Consequently, it remains unclear whether there would be any long-lasting benefits using this method. There are, however, certainly health risks linked to lack of sleep.

Still looking for a solution

To develop preventative interventions, we need to study newly-recruited emergency workers who haven’t yet suffered on-the-job trauma and follow them over time, spotting which “coping styles”, present before trauma, may predict their reactions afterwards.

For example, some people naturally react to stressful life events by dwelling on them, thinking about why they happened for hours on end. This strategy, called rumination, has been linked to PTSD in people who survived car crashes.

If rumination predicts PTSD in first responders, then preventative interventions could train people to spot when they are dwelling on an event and refocus their attention to the task at hand.

When we have identified which factors heighten emergency workers’ risk of developing PTSD, programmes can be developed to target those vulnerabilities. Only then can an intervention, directed at first responders most at risk of developing PTSD, properly protect them in their line of work.

The Conversation

Jennifer Wild is a Senior Research Fellow in Clinical Psychology at the University of Oxford

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