London Banter - View Single Post - Conductors axed from NB4L/New Routemaster/Boris Bus

[email protected] · July 20th 16, 07:22 PM posted to uk.transport.london

In article , d () wrote:

On Wed, 20 Jul 2016 03:53:11 -0500
wrote:
In article , (Roland
Perry) wrote:
Most of the VWs implicated in the recent scandal were tested during
the Euro 5 time window (all the way back to 2009), and my
understanding is the most pressing trigger for the recent testing
issue was the USA moving from a "fleet average" emissions target
during their equivalent of the Euro 5 equivalent epoch to an "every
model you make must pass" in their Euro 6 equivalent epoch - while
also trying to avoid the cost of deploying AdBlue across the whole
range.

The point was that on the road surveys in central Cambridge demonstrated
much higher emissions levels with Euro 4 barely better than Euro 3
instead of half the level.

Hardly surprising. Unless you use a NOx capture system such as adblue then
low NOx = higher CO2 and vice versa due to the conflicting demands of
cylinder temperatures required. Drivers don't notice NOx emissions but
they do notice rubbish fuel economy so no car company that wanted to stay
in business would sacrifice fuel economy for NOx so they make sure of low
NOx figures during the test and high everywhere else. And TBH , CO2 is a
lot more important than NOx anyway in the medium and long term.

All the time I was involved we wanted the County Council to use the city
centre bollards to limit the numbers of polluting vehicles. Despite their
responsibilities under the legislation they failed to act.

Its all stick and no carrot isn't it with people like you. If car drivers
arn't allowed to use a road they've legally paid to use then they the
council should offer some sort of road tax refund or provide free park and
ride services.

The roads in question, as Roland knows but perhaps you don't, are very
restricted for car access and have been for nearly 20 years. Access is
maintained though. Most of the emissions are from buses and taxis as I said.

--
Colin Rosenstiel