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Lewisham Council voted unanimously last night to oppose TfL £1bn Silvertown Tunnel scheme, on the grounds that it risks increasing both congestion and air pollution in the area.

The Labour-run council endorsed a motion proposed by Blackheath councillor Kevin Bonavia, who mocked TfL’s claims on air pollution as “simply not good enough”.

Lewisham’s opposition follows that of Hackney, which passed a motion against the tunnel in July.

The current consultation – which closes this Sunday – is intended to rubber-stamp the controversial scheme before it goes through a special streamlined planning process.

The tunnel is by no means a done deal – while the process is being rushed through so it can be ticked off before Boris Johnson leaves office, his successor as mayor can bin the project as soon as they take over.

All but one of Lewisham councillors will be hoping their motion helps to persuade Labour’s mayoral candidate, Sadiq Khan, to dump the scheme. The remaining councillor, the Green Party’s one-man opposition, John Coughlin, also spoke up for the motion. Green candidate Sian Berry is already against the tunnel.

To object to TfL’s proposal, visit www.tfl.gov.uk/silvertown-tunnel before 11.59pm on Sunday. For tips on what to say, visit No to Silvertown Tunnel.

Lewisham’s motion says the planned tunnel between Greenwich and the Royal Docks “risks exacerbating rather than dispersing” traffic congestion in the area, including on the A2 and the South Circular Road in the borough.

The resulting increase in congestion also risks “a deterioration of air quality in the London Borough of Lewisham”, affecting the health of residents, it added.

Particular worries for Lewisham councillors include the dreadful air quality around New Cross and Deptford – which even TfL admits will get worse under the Silvertown scheme – and the congestion blackspot of the Catford one-way system, which needs no help from the Blackwall Tunnel to become gridlocked.

“What TfL don’t say is how they’ll deal with the approach roads,” Cllr Bonavia, the council’s cabinet member for resources, said. “All they’ll have is a widening of the A102 near the tunnel – nothing about the approach roads further up.

“What does that mean for us in Lewisham, on the A2 and South Circular? More congestion.

“This proposal is poorly planned, poorly placed, and can only harm the poor congestion and poor air quality our residents face.”

Seconding the motion, fellow cabinet member Rachel Onikosi accused TfL of “over-egging” claims that the tunnel would be a “congestion killer”.

So Lewisham’s councillors have made it clear they won’t be taken in by TfL. So have Hackney’s. But what about Greenwich?

A2 traffic jam in Eltham

This website has written before about the dire perils of trying to appease TfL on the Silvertown Tunnel.

The No to Silvertown Tunnel campaign began from a petition on this website three years ago.

It’s since gained a life of its own, conducting three air quality studies, submitting evidence to parliamentary and City Hall inquiries, meeting politicians and doing its damnedest to get this thing stopped. (So I should point out that this post does not represent the views of the campaign, whose members have views of their own.)

Some of the Greenwich political figures who have been asking why this website hasn’t been properly updated for weeks will hopefully have been spending their time reading up on the scheme.

There are thousands of pages of consultation documents to sift through – full of contradictions and dodgy assumptions – but it remains clear that this is a botched scheme that needs to be opposed.

Whether or not you believe new road-building somewhere is what’s needed (generally it’s only a short-term fix at best), the tunnel is looking like a costly, under-scrutinised disaster. It’s all very well crying “something must be done” – this ain’t it, and TfL has played many people for mugs. There’s no one, satisfying big bang solution to getting rid of those jams.

Despite the glossy propaganda which has somehow turned up in scores of community venues across Greenwich borough, TfL has consistently admitted some areas will see increased pollution and congestion because of the scheme.

Tolling is likely to end up being the worst of all worlds, with fees too low to deter HGVs and Kent commuters, but enough to send increasing amounts of more local traffic to Rotherhithe. There are no plans to toll at weekends, despite heavy congestion on Saturdays and Sundays.

Meanwhile, the cost has crept up to £1bn, up from £600m three years ago. Desperate talk about boosting cross-river bus services is at odds with the current reality where TfL neglects the 108, and canned the Rotherhithe Tunnel’s service nine years ago.

And there’s the obvious, fatal flaw that hobbles the scheme from the start – while it’s aimed at relieving northbound Blackwall Tunnel queues, it will only exacerbate each evening’s southbound queues.

Many evenings see traffic at a crawl back through Eltham, Kidbrooke and back into Greenwich – imagine that with the 20% extra traffic even TfL predicts will use the A102/A2. There are also similar problems north of the river.

There are many different reasons why the Silvertown Tunnel must be stopped – whether you’re a driver, a bus user, a pedestrian, a cyclist, someone who has to breathe this area’s foul air, or a combination of all or some of these.

A2 jam at Kidbrooke

So far, Greenwich’s Labour councillors have stayed notably silent on a Conservative scheme that will have serious implications for the borough. There are murmurings that they’ve been told to keep schtum.

Regeneration cabinet member Danny Thorpe and deputy leader John Fahy attended No to Silvertown Tunnel’s public meeting two weeks ago, but did not contribute any of their thoughts. Nor did the assembled Tories.

What is clear, however, is that the demands put forward in Greenwich’s response to the last Silvertown Tunnel consultation haven’t been met. Demands to run the DLR through the tunnel to Kidbrooke and Eltham have been rejected, and TfL hasn’t been forthcoming with proposals to extend the London Overground from Barking to Abbey Wood.

A third demand, to run the DLR to Thamesmead and Abbey Wood, could appear in a new consultation on a crossing at Gallions Reach to appear on Monday, but taken in isolation, appears to have little relevance to the Silvertown scheme.

Further demands – for independently-scrutinised modelling that shows congestion and pollution would be cut – also have not been met, as the current consultation only carries “preliminary” modelling.

But this website understands from a variety of sources that TfL has been trying to secure Greenwich backing by tying a number of improvements – many desperately needed anyway – to implementation of the Silvertown Tunnel scheme.

These include a bus route from Kidbrooke Village to North Greenwich, which has been on the drawing board for at least 12 years, since the days when the Ferrier Estate was still standing.

More cynically, this website understands that TfL is tying installing a noise barrier along the A102 in Blackheath to implementation of the Silvertown Tunnel scheme, and that Greenwich councillors are happy to go along with this.

Essentially, this means that if residents on Westcombe Hill and Siebert Road (on the left in the picture below) don’t want to be deafened by traffic noise, they have to agree to be choked by even more traffic.

Charlton Road/A102 bridge, 2 April 2014

When it comes down to it, the Silvertown Tunnel question comes down to whether you wish to challenge Transport for London’s modelling and the assumptions that lie behind it.

One group which is set not to challenge TfL is the Greenwich Society. This website has seen its draft response, which swallows the TfL line almost completely – backing the tunnel despite admitting it will cause “small increases in traffic on local roads”.

The society left writing its response to Sir Alan Bailey, a former permanent secretary in the Department for Transport in the 1980s – his words reflect the thinking common in those times. Greenwich Society members might like to wonder what they are getting for their subscription fees.

This website understands the Westcombe Society and East Greenwich Residents Association are rejecting the scheme.

Many Greenwich Labour councillors like to pretend they have no influence over the process – even though their mayoral candidate could, if elected, cancel the scheme in May.

Of course, in other political spheres, we’ve seen Labour politicians face down dangerous proposals from Conservative opponents – such as George Osborne’s tax credit cuts.

With Londoners dying from air pollution-related causes, and town centres choked by traffic congestion, it would be refreshing to see Greenwich follow in Lewisham’s lead and stand up for residents. Will they? We’ll have to wait and see.

To object to TfL’s proposal, visit www.tfl.gov.uk/silvertown-tunnel before 11.59pm on Sunday. For tips on what to say, visit No to Silvertown Tunnel or see its full response.