Road Traffic around Brent Cross (3)

MQT on 2015-12-16
Session date: 
December 16, 2015
Question By: 
Navin Shah
Labour Group
Asked Of: 
The Mayor


Which specific junctions have been treated as 'over 90% saturation' and therefore beyond hope of mitigation?


Answer for Road Traffic around Brent Cross (3)

Answer for Road Traffic around Brent Cross (3)

Answered By: 
The Mayor

The detailed design of the major junctions affected by the Brent Cross Cricklewood regeneration project is still ongoing. The effect of forecast traffic flow on these junctions is not yet clear. As a result, saturation levels for each junction have not yet been determined.

The 90% saturation threshold is a benchmark by which we used to judge highway schemes. If the modelling results showed that every approach remained below 90% then generally it could be implemented as there would still be 10% 'spare' capacity. Our approach to scheme assessment has now changed, and uses journey times, journey time reliability and the 4 stage modelling process where appropriate.

Junctions that show a saturation level of above 90% are not beyond hope of mitigation. Rather, this is where we would focus our efforts trying to find mitigation, especially if other benefits outweigh the traffic impact.

If, following analysis, there is a need for any substantial changes to the designs of the major Brent Cross junction, they will be considered through Barnet Council's planning processes, with significant input from Transport for London.