(In the pavement, foreground can be seen the black square of the traffic sensors which count cars)
Traffic congestion and hence pollution within Zurich is limited by controlling traffic lights to prevent more vehicles entering until there is “space” for them on the roads. It turns out that the cars are not delayed outside the city any more than they would be inside the city. To see a description look part way through video, about 5m 29.
A similar system could rapidly be applied to Bath. This would be a widespread extension of the Bus Gates, including on main roads and other strategic points, determined by traffic modelling studies, but with cars being “rationed” through in response to traffic sensor measurement. The system could vary in real time to not only limit congestion but also in response to predicted pollution levels which are strongly influenced by weather and which is sufficiently predictable to be able to be used to feed into the control system.
This could in the long run become a form of Green Wave Traffic Light – Preemption.
Since much of Bath’s traffic is internal, internal rationing lights would be employed.
The same system could be applied to places suffering as “rat runs” such as Batheaston etc.
City centre parking needs to be reduced.
In addition, work place parking needs to be controlled as has been successfully applied in Nottingham by parking levies.
In addition quality express buses should be provided from eg Chippenham, the M4 park and ride into the centre, Trowbridge, Radstock, etc to reduce the amount of people driving in.
All Park and Rides should be closed since these destroy rural bus routes by taking passengers from the bus service, making it uneconomic, and so closing, and leaving the remaining ex-bus users, now without sufficient buses, and forced to drive.
Look for this frame:
See the above part at 5.29 for a description of how cars are queued outside the city, rather than inside
Trams trundle unobtrusively through high end shopping pedestrian areas
Schedules to die for
Cyclists have learnt not to cycling directly into the rails, just like they know to avoid kerbs in UK