[icc97]

It depends on your definition of 'very little traffic', the Poynton Plan reckons on about 900 vehicles per hour [0].

> Park Lane also carries significant traffic flows (some 10,500 vehicles per 12-hour day), much of which is local traffic, and cannot be diverted via ot her existing routes

[0]: http://www.hamilton-baillie.co.uk/_files/_projects/100-2.pdf