Computer says road

Not my title, but that of this perceptive and persuasive paper by David Milner, the Deputy Director of Create Streets.  Highly relevant to the proposed Arundel by-pass: 'A common assumption is that spending on more and wider roads will ease congestion. However, multiple studies have found that building new roads does not achieve this goal and is, instead, generating more journeys and more traffic.' 

On a more technical level, the paper examines why planners put more credence on the output of transport models than resident's views, ignoring both the historic overprediction of such models, for example

and that said models incorporate the biases of the modellers themselves.  

Rubbish In results in Rubbish Out!