I've had a pm from them - the idea of another cross town route appeals - in a cycling city you can't have too many routes!.
"One of the key aspects of the Causey is to link to
wider paths and green spaces, so it's good to learn more about these (ie laid back tours and the forum links I placed).
Basically the aim of the Causey is to reclaim the street from vehicles for people.
The intention is not to pedestrianise the street in the sense of excluding vehicles and bikes, but to make a shared surface which accommodates all users, including pedestrians, bikes and vehicles as well as people with mobility issues, visual impairment etc.
Driving at speed will be discouraged and all vehicles and bikes will be encouraged to move at walking pace, respecting others.
To sum up, cyclists will be able to move through in both directions but not at any speed... [/i]"