I'd never seen a Bus Gate before until I drove through one in Colchester.
I'm a delivery driver & I deliver to Colchester 2 days a week, have done for 20 years.
There's 5 bus restrictions in Central Colchester IIRC.
1. Turn right at the top of the High St. into Queen St. The High street now has restrictions for certain vehicles now so I don't think it was there.
2. Part of Middleborough & going up North hill to turn left onto the high st.
3. The rail crossing at Hythe Quay.
4. Most likely place is at the bottom of Hythe hill. its about 2-300 yards in length but the bus gate is clearly marked & there is an enforcement Camera there.
Google maps doesnt show the camera sign there from 3 years ago but I can check back in a couple of days as I have a delivery round the corner.
5. North Station road. Thanks to
@Mason- for reminding me.