The intervention comes just days after Transport for London (TfL) announced that they would open the new road route under the River Thames on April 7.
The £2.2 billion project has courted controversy for years, with some campaigners fearing that the new tunnel will worsen traffic and air pollution, rather than improving it as TfL claims.
Many drivers have also opposed the toll that is set to be applied to both the Silvertown tunnel and the existing Blackwall tunnel, which could cost them up to £8 a day for return journeys.
TfL has said that the toll is necessary as without it, “there would likely be high levels of traffic and congestion” as well as longer journey times.
Dominic Leggett, a spokesperson for Stop Silvertown Tunnel Coalition, claims that this proves the Silvertown tunnel is a new route that will be used by different drivers to those who currently use the Blackwall tunnel.
“TfL want the illusion that Silvertown is a relief road for Blackwall,” he explained.
“But it’s not because it goes somewhere different – into the middle of Canning Town.
“The existing traffic still wants to use the Blackwall tunnel. This is why they are tolling the tunnels, to stop big increases in congestion and pollution.
“So essentially you are taking a bunch of traffic away from Blackwall and charging people to use it for no benefit.”
Currently, around 100,000 drivers use the Blackwall tunnel every day.
TfL modelling suggests that total traffic using the two crossings will be largely the same after Silvertown opens and both tunnels are tolled.
Around 80% of this traffic will continue to use the Blackwall tunnel.
But Stop Silvertown Tunnel Coalition has warned that there is no legal obligation for a future Mayor of London to keep the toll that keeps traffic at these levels.
“Any politician can decide it’s politically advantageous to remove this toll if everyone hates it,” Mr Leggett said.
“At that point, you get huge amounts of extra congestion and pollution.
“Now you see what the Silvertown tunnel really does – which is potentially worsening these things rather than reducing them as TfL claims.”
TfL says that Silvertown will “reduce journey times and help manage air pollution”.
A spokesperson added: “This will make journeys faster and more reliable, with journeys expected to be up to 20 minutes quicker at peak times.
“It will also allow TfL to increase the number of buses able to cross the river in this area from six to 21 buses an hour in each direction during the busiest times – all of which will be zero emission at the tailpipe.”
They added that transport bosses would continue to publish monitoring reports once the tunnel opens, to make sure air quality and traffic management was improving.