Cllr Elisa Meschini from the Greater Cambridge Partnership (GCP) has stated in GCP webinars how wonderful the Milan system is. It’s just like the proposed system and there is no problems with it.

Les us have a quick compare of this to the proposed Sustainable Travel Zone (STZ) congestion charge. We shall take Zone C, which is an approximation to the size of the STZ in both population and area. This is the same area the GCP has used in their reports of similar solutions.

MilanCambridge
Hours of operation07:30 – 19:30 Monday to Friday
07:30 – 18:00 Thursdays
07:00 – 19:00 Monday to Friday
Price (Cars)Non residents €5£5
Residents discountYes, 40%
Plus 40 free trips a year
No
Hybrid vehicle chargeFree£5
Electric vehicle chargeFree£5
Motorcycles and MopedsFree£5

Oh, and it was approved by a referendum in 2011.

So it doesn’t appear to be that similar after all.