Silvertown Tunnel and Dieselgate Scandal

Meeting: 
MQT on 2015-10-21
Session date: 
October 21, 2015
Reference: 
2015/3238
Question By: 
Darren Johnson
Organisation: 
City Hall Greens
Asked Of: 
The Mayor
Category: 

Question

Richard de Cani of TfL has stated that TfL's air quality modelling for the Silvertown tunnel reflects 'real world driving conditions'. Yet, your testing of 13 vehicles on a London test track showed that the diesel cars were above the expected level, even after you had made allowance for the difference between European test results and 'real world driving conditions'. Have you amended your pollution modelling to take account of these tests and the VW scandal?

Answer

Answer for Silvertown Tunnel and Dieselgate Scandal

Answer for Silvertown Tunnel and Dieselgate Scandal

Answered By: 
The Mayor

The air quality modelling for the Silvertown Tunnel project used COPERT 4 emissions functions, which are designed to represent the emissions of vehicles in real-world driving rather than the results of type-approval testing.