A 24-hour Tube service is a great idea - but more can be done to improve London's infrastructure

Improvements to Tube are badly needed. Official projections show London’s population is growing by 2,000 every eight days. Getting more out of our existing infrastructure is essential to keeping London competitive and keeping its economy thriving.

In an open letter to passengers, the mayor and Transport for London have committed themselves to a 24-hour Tube service. It’s an exciting announcement, and will undoubtedly deliver a boost to London’s £8bn a year dining and entertainment industry. But there are wider implications for the capital.

For decades, the Underground has run New Year’s Eve “all-nighters”, but the plan almost certainly means that regular all-night running will happen for the first time ever. Initially limited to five lines, and beginning in 2015, Friday and Saturday operations could grow to cover more of the network and eventually Thursday nights.

The changes would do more than make life easier for revellers, however. They would mark a dramatic achievement for City Hall and Tube bosses. For decades, central government and then the first mayor wrestled with unions, engineers and complex public-private partnership contracts to get all-night running on the network. A host of reasons were lined up to say why this was not possible or unaffordable. Then came the Olympics.

London’s transport system worked efficiently to deliver record volumes of passengers, and the Tube ran longer and started earlier. Londoners seized on these achievements. What if the energy of the Olympics could be harnessed for delivering public services for London on a regular basis?

Improvements to Tube service are certainly pressing. Official projections show London’s population is growing by 2,000 every eight days. Over the next ten years or so, the city’s headcount will grow by a number equivalent to the population of Birmingham. Getting more out of our existing infrastructure is essential to keeping London competitive and keeping its economy thriving. It will help us compete in a global race with cities like Berlin, Paris and New York.

But to keep up with demand, city leaders should go further. Mayoral control over suburban rail, quiet out-of-hours deliveries, improved shopping streets, diesel-free taxis and further improvements for cyclists are a few ideas that come to mind. Running bus and Tube services on Christmas Day is another. No other multicultural world city shuts its transport system down the way London does.

Delivering these initiatives will require investment and control by local politicians. Permitting the mayor and London’s councils to keep a greater proportion of the capital’s taxes would allow more projects to be funded and services to be improved. Londoners would be able to enjoy the benefits that growth brings, and authorities would have the resources to deal with more of the pressures.

Alongside congestion charges, the cycle hire scheme and delivering the Olympics, a 24-hour Tube is a testament to London devolution. Ministers should now go further and be bold with city finance reform. As the London Finance Commission recommended, Whitehall should let Londoners and their leaders have more financial freedom to improve the capital's fabric. We may then see more of the improvements vital for a thriving city, that increasingly doesn’t want to sleep.

London's population is growing by 2,000 people every 8 days. Photograph: Getty Images.

Alexander Jan is a consultant at Arup.

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The deafening killer - why noise will be the next great pollution scandal

A growing body of evidence shows that noise can have serious health impacts too. 

Our cities are being poisoned by a toxin that surrounds us day and night. It eats away at our brains, hurts our hearts, clutches at our sleep, and gnaws at the quality of our daily lives.

Hardly a silent killer, it gets short shrift compared to the well-publicised terrors of air pollution and sugars food. It is the dull, thumping, stultifying drum-beat of perpetual noise.

The score that accompanies city life is brutal and constant. It disrupts the everyday: The coffee break ruined by the screech of a line of double decker buses braking at the lights. The lawyer’s conference call broken by drilling as she makes her way to the office. The writer’s struggle to find a quiet corner to pen his latest article.

For city-dwellers, it’s all-consuming and impossible to avoid. Construction, traffic, the whirring of machinery, the neighbour’s stereo. Even at home, the beeps and buzzes made by washing machines, fridges, and phones all serve to distract and unsettle.

But the never-ending noisiness of city life is far more than a problem of aesthetics. A growing body of evidence shows that noise can have serious health impacts too. Recent studies have linked noise pollution to hearing loss, sleep deprivation, hypertension, heart disease, brain development, and even increased risk of dementia.

One research team compared families living on different stories of the same building in Manhattan to isolate the impact of noise on health and education. They found children in lower, noisier floors were worse at reading than their higher-up peers, an effect that was most pronounced for children who had lived in the building for longest.

Those studies have been replicated for the impact of aircraft noise with similar results. Not only does noise cause higher blood pressure and worsens quality of sleep, it also stymies pupils trying to concentrate in class.

As with many forms of pollution, the poorest are typically the hardest hit. The worst-off in any city often live by busy roads in poorly-insulated houses or flats, cheek by jowl with packed-in neighbours.

The US Department of Transport recently mapped road and aircraft noise across the United States. Predictably, the loudest areas overlapped with some of the country’s most deprived. Those included the south side of Atlanta and the lowest-income areas of LA and Seattle.

Yet as noise pollution grows in line with road and air traffic and rising urban density, public policy has turned a blind eye.

Council noise response services, formally a 24-hour defence against neighbourly disputes, have fallen victim to local government cuts. Decisions on airport expansion and road development pay scant regard to their audible impact. Political platforms remain silent on the loudest poison.

This is odd at a time when we have never had more tools at our disposal to deal with the issue. Electric Vehicles are practically noise-less, yet noise rarely features in the arguments for their adoption. Just replacing today’s bus fleet would transform city centres; doing the same for taxis and trucks would amount to a revolution.

Vehicles are just the start. Millions were spent on a programme of “Warm Homes”; what about “Quiet Homes”? How did we value the noise impact in the decision to build a third runway at Heathrow, and how do we compensate people now that it’s going ahead?

Construction is a major driver of decibels. Should builders compensate “noise victims” for over-drilling? Or could regulation push equipment manufacturers to find new ways to dampen the sound of their kit?

Of course, none of this addresses the noise pollution we impose on ourselves. The bars and clubs we choose to visit or the music we stick in our ears. Whether pumping dance tracks in spin classes or indie rock in trendy coffee shops, people’s desire to compensate for bad noise out there by playing louder noise in here is hard to control for.

The Clean Air Act of 1956 heralded a new era of city life, one where smog and grime gave way to clear skies and clearer lungs. That fight still goes on today.

But some day, we will turn our attention to our clogged-up airwaves. The decibels will fall. #Twitter will give way to twitter. And every now and again, as we step from our homes into city life, we may just hear the sweetest sound of all. Silence.

Adam Swersky is a councillor in Harrow and is cabinet member for finance. He writes in a personal capacity.