Tag Archives: Blackwall Tunnel

The Silvertown Tunnel is no solution for the Blackwall Tunnel’s failures

Delays hit the Blackwall Tunnel

The Blackwall Tunnel closure caused gridlock across south-east London – but a new tunnel at this point is not a serious solution to these problems

It’s the nightmare that haunts hundreds of thousands of drivers. And it happened on Tuesday morning, right as the rush hour began. A mobile crane managed to shed a load of diesel and hydraulic fluid all over the northbound Blackwall Tunnel.

Cue huge jams and a lengthy closure as south-east London’s road network ground to a halt while the difficult task of resurfacing the tunnel began. Three-hour delays for buses were reported at the height of the disruption, while howls of frustration could heard from as far away as the Kent coast.

None of this is good for the lives of people who live near the tunnel. It’s no good for the wider economy, either.

But the proposed Silvertown Tunnel is no solution to Blackwall Tunnel woes – whether huge failures like Tuesday’s, or the minor closures that happen every day.

It fails as a diversionary route – blighting Canning Town and Poplar

As a diversion route, the proposed tunnel is inadequate for the levels of traffic that use Blackwall each day. Normal operation would see it restricted to just one lane for normal traffic, with another set aside for buses and HGVs. At times of disruption, all traffic would be able to use both lanes… only to hit a set of traffic lights at the tunnel’s northern exit.

Many drivers from south London and Kent assume they’ll be able to just fly away from the Silvertown Tunnel once they cross the Thames. That won’t be the case on a good day, and it certainly won’t happen on a bad day. Northbound traffic would emerge at a rebuilt Tidal Basin Roundabout – a junction that’d be controlled by traffic lights.

At Tidal Basin Roundabout, you can head right towards Silvertown and local roads through the Royal Docks; or left to the Lower Lea Crossing and the Docklands. There’d be no direct route for the majority of diverted Blackwall Tunnel traffic to reach the A12 towards Bow – to do that you’d need to proceed through three more congested junctions, all of which are vulnerable to jams on the A13 or on the Limehouse Link/ Aspen Way.

With the Silvertown Tunnel in place, a Blackwall Tunnel closure would be likely to spread traffic jams across both sides of the Thames, grinding Lower Lea Crossing, Leamouth Road and East India Dock Road to a halt.

If you were heading towards Essex, you’d end up on local roads through Silvertown and Beckton which aren’t up to the job of taking all the diverted traffic.

Traffic jams will still blight south-east London – and wreck bus services

Meanwhile, traffic would start queuing back from Tidal Basin Roundabout, through the Silvertown Tunnel, and back down the A102 as before. As usual, buses would take the biggest hit, with route 108 rendered unusable, just as it is now.

And all this is taking TfL’s highly dubious assertions of a minimal traffic increase from the Silvertown Tunnel at face value. New roads have an unfortunate habit of generating new traffic, so the combined Blackwall and Silvertown approach would be significantly busier than it is now.

It’s also worth saying that the location of the Silvertown Tunnel makes it impractical for A12 drivers when the southbound Blackwall Tunnel packs up; you’d either be stuck on the northern approach or crawling through Stratford, West Ham and Canning Town.

River crossings and the roads around them will always be vulnerable to disruption – even the network of bridges in west London suffers badly when one is closed. The Silvertown Tunnel would merely add pressure to existing roads – particularly the A102 – and would be little use when things go wrong with Blackwall.

Cut traffic levels, cut the number of jams

The only way you can guarantee reducing congestion is by reducing the amount of traffic on the roads – and giving Londoners alternative ways to cross the river, such as by public transport, on foot, or by bike. This would free up space for those who need to use the roads.

Now he is mayor, we are calling on Sadiq Khan to commission a thorough review of the Silvertown Tunnel, as he promised, along with the other crossings proposed under his predecessor.

All of us – drivers, residents, and commuters – deserve fresh thinking on this issue, and not the same old “solutions” that are bound to fail, just as the Blackwall Tunnel did on Tuesday.

Video: Why TfL’s Silvertown Tunnel won’t cure Blackwall Tunnel congestion


Transport for London constantly claims the Silvertown Tunnel will cure congestion at the Blackwall Tunnel. That’s simply not true. It’ll do nothing to relieve the queues heading south on the A12 through Bow and Poplar, while additional traffic will merely exacerbate the congestion on the A102 and A2 through Greenwich, Kidbrooke, Eltham, Bexleyheath and beyond.

Don’t believe us? We took a Friday rush hour road trip to find out. Unlike TfL’s video, ours contains real traffic…

GUEST POST: John Stewart, UK Noise Association – Sinking the plans for the Silvertown Tunnel

Approaching the Blackwall Tunnel

John Stewart is the Chair of The UK Noise Association and author of “Why Noise Matters” (ISBN: 9781849712576 – Taylor & Francis/Earthscan, 2011). He also edited and contributed to “Poor Show” (Simon Wolff Charitable Foundation, 1988) which addressed poverty, transport and health in South London and contained interviews with people affected by traffic pollution, as well as useful facts and figures.

The following article was first published by the UKNA in May 2013 and is republished here with John’s kind permission:-

Sinking the plans for the Silvertown Tunnel

by John Stewart

“Noise justice is a key part of social justice; a belief that everyone deserves to live peacefully and quietly in a safe secure home”

DEFRA noise map of Greenwich from http://services.defra.gov.uk/wps/portal/noise/

DEFRA noise map of Greenwich – find out more at DEFRA Noise Mapping England

It is a road which is very special for me. It is not a tree-lined boulevard or a pretty country lane. In fact, it is one of the noisiest, dirtiest roads in the country. But, that’s why it is so special.

Thirty years ago when I was newish to London I took a wrong turning and found myself walking along the Blackwall Tunnel Northern Approach Road. (Sorry for the non-catchy name but it does what it says on the tin). I was hit by a wall of fast-moving traffic all the way from the Blackwall Tunnel to the Bow flyover, a distance of approaching two miles. And as I looked at the tower blocks, flats and estates within yards of the road and saw the children playing beside the roaring traffic, I thought: “never again should this kind of road be built”. Nothing, but nothing, can justify this acoustic hell.

That experience was one of the reasons I became so deeply involved in the “anti-roads” movement in the late 1980s. I chaired ALARM, the London-wide umbrella network made up of 250 local groups opposed to road building across the capital. And in the 1990s I was one of the founders and the chair of the national network, ALARM UK. You can read about it in Roadblock. (The original had wonderful pictures but it was before the age of the internet and was never put online).

Unbelievably, one of the road schemes proposed was a parallel Blackwall Tunnel. It would have poured yet more traffic within yards of the tower blocks, flats and estates. I worked alongside the local protest group, SPLASH, brought together by the radical nun, Sister Christine. Anybody who dares to suggest that people choose to live beside a road like the Blackwall Tunnel Northern Approach or that they get used to the noise should have been at one of those meetings. The passion, the anger, the helplessness was palpable.

Approaching the Blackwall Tunnel

Never again should this kind of road be built. Nothing, but nothing, can justify this acoustic hell

However, SPLASH was successful. The plans for a parallel tunnel were stopped. In fact, virtually all the road building proposals for London of the 1980s and 1990s were abandoned in the face of overwhelming public opposition. The fiercely contested M11 Link Road in East London, completed in the mid-1990s and the focus of the longest, continuous direct action protest in British road-building history was the last major road to be built in the capital.

Silvertown Tunnel = yet more traffic

Until now. The Mayor of London has consulted on plans to build…..a parallel Blackwall Tunnel. He’s renamed it. He is calling it the Silvertown Tunnel. And it has a slightly different alignment to the previous proposal. But it will still bring a flood of extra traffic on to the Blackwall Tunnel Northern Approach Road since it will double the capacity of the existing tunnel, 6-12 million extra vehicles a year.

All this extra traffic will pour into an area which is one of the poorest in the country. Many of the wards through which the Blackwall Tunnel Northern Approach Road passes are amongst the most deprived in the UK. The borough, Tower Hamlets, is the 3rd or 7th (depending on the measurement used) most deprived in England –

Retracing my steps

And so last week I retraced my steps. Once more I walked from the Blackwall Tunnel to the Bow Flyover. The tower blocks have had a lick of paint. Some of the flats have had been modernised. Some, indeed, were new. There seemed to be a few more noise barriers than previously.

But the roar of the traffic was still there. I had taken a noise meter with me. The official statics shows that it averages out at over 75 decibels (see map – the Blackwall Approach Rd runs north/south straight through the middle of the map) – much higher than the aircraft noise experienced by most people in West London. When I was there the noise never fell below 60 decibels and frequently exceeded 85 decibels. The area, too, has one of the highest levels of air pollution in the country.

Noise bands on the northern side of the Blackwall Tunnel

Noise bands on the northern side of the Blackwall Tunnel

The children were still playing within yards of the road. A mother and her young son, laden with their shopping, trudged along it to catch the bus. The youths had a quick fag outside the chip shop before disappearing down the gray, featureless underpass.

I then heard another noise – aircraft. Thirty years ago, London City Airport hadn’t opened. Today Blackwall and Bow are directly under the airport’s take-off flight path. Thirty years ago, the number of planes using Heathrow was half what it is now. They didn’t impact of East London. Today, they are a constant feature. Why don’t they complete the job, I thought, and make Bromley-by-Bow underground station, the terminal for HS2.

“All this extra traffic will pour into one of the poorest areas in the UK Silvertown Tunnel not needed”

But back to the Mayor’s plans for a new tunnel. It is simply not required. Transport for London (TfL) argues that the current tunnel is full. It further argues that, if London’s population rises to 10 million by 2030, gridlock could set in. This is set out in its recently published Roads Task Force report.

If current policies remain in place, TfL’s predictions are likely to come true. Traffic congestion will become widespread. Clogged streets are already costing business a fortune. According to Traffic Congestion European cities (2011), a study carried out by the navigation system specialist firm, TomTom, London is the third most congested city in Europe.

There are effective ways, however, to cut congestion without resorting to building more tunnels and roads. The business organisation, London First, favours road pricing. Indeed, TfL’s Roads Task Force implies that many of its road schemes would be unnecessary if road pricing was introduced. It is the logical answer but politicians are wary about the reaction of the public.

Tougher parking standards, a further reallocation of road space to non-car modes, policies to revive town centres at the expense of edge-of-town developments would all help reduce traffic. And that is the key: traffic reduction. Tough targets to reduce car traffic would provide the incentive for TfL and the boroughs to adopt these sorts of policies.

Traffic reduction: a realistic alternative

They might not as difficult to implement as many believe. There is considerable evidence of a peak car effect in London. Research from the Centre for London suggests car usage is falling “partly due to an increase in low car-use demographic groups, and to lifestyle factors such as mobile technology.”

How vehicle traffic has fallen (excl bicycles)

How vehicle traffic has fallen (excl bicycles)

And, remember, a 2010 Department for Transport report found that 66 per cent of trips made in the UK were less than five miles, yet more than half of these were made by car. Twenty two per cent of trips were less than one mile, around a 20 minute walk, but 20 per cent of these journeys were also made by car.

Road pricing, introduced in the right way, can be popular. The money collected from the Central London scheme introduced by the previous Mayor, Ken Livingstone, made possible the historic improvement to London’s bus services. Just think how business would feel if their vehicles were no longer bogged down in traffic. And how Londoners would react if they were told that road pricing would mean the exorbitant fares they pay on the bus, tubes and trains were to be halved. I don’t know if the fares could be cut as much as 50% but you get the drift on how to sell road pricing.

And, oh yes, it would be welcomed by the people living beside the Blackwall Tunnel Northern Approach Road. Noise justice.

John Stewart, May 2013