Edinburgh LEZ
 

It looks like Edinburgh, Scotland's capital city, would like to go all "California" on vehicle emissions.
Edinburgh could 'ban vehicles' in Low Emission Zone - BBC News
As of 5th of March this year virtually all of Edinburgh is now a 20 mph zone, with heavy enforcement. Only the main feeder roads are 30 mph or, in some cases, 40 moh.
Princes Street, shown in the photo, is only for buses, trams and black cabs.

Edinburgh is a nightmare to drive, and park anyway, its enough to put people off as it is. Beautiful city, love the castle. Ironic how princes street is reserved for the heaviest polluting vehicles on the roads haha.

I never have any bother driving in the city, but parking is horrendous. There are free park and ride facilities, south and west of the city and also north of the Queensferry Crossing. If I am going into the city centre I take the bus,
The only thing about Princes Street is it is wide open on its south side, with the gardens, so at least the pollutants don't get trapped.

Then with vehicles like buses, emissions and fuel economy need to take into account the number of passengers. Yeah, they worse than a car with just 4 to 5 people on board, but how about with more.

It is also easier to set up infrastructure for vehicles with such set routes. So electric, or even hydrogen if so inclined, becomes more feasible.

Lothian Buses, the city run bus company, have started introducing electric buses running in what will be the Low Emission Zone.

Lothian electric bus spec.
"Built in the UK, the WrightBus StreetAir single deck buses can carry up to 70 passengers.
They are fitted with Wi-Fi, high back seats, USB charging points and LED spotlights.
They operate on a pure electric powertrain, including an all-electric heating and cooling system, with 300 kWh of total battery energy which allows the buses to run with zero tailpipe emissions.
The buses will charge overnight at new charging stations installed within our Annandale Street garage. Once plugged in, the vehicles take 3-4 hours to receive a full 75 kW charge and can operate for up to 130 miles on electric power.
They are designed with regenerative braking, allowing the energy created when the vehicle is braking to be recovered back to the batteries and stored to power the vehicle exending the range of the bus."

For the past 4 years we have also had the trams in the city centre. They run right out to the airport, swapping to a dedicated tramway after leaving the city centre. They were supposed to run right down to the Port of Leith, to service the cruise liners, but that was put on hold after costs went way out of hand.
Edinburgh had a wonderful tram system, covering the entire city, but it was shut down, and all the track lifted, in 1956. Great forethought there!

https://en.wikipedia.org/wiki/Edinburgh_Trams
https://en.wikipedia.org/wiki/Edinbu...ation_Tramways

Edinburgh's electric buses.

Some city in Northern Europe is going to be testing an in road electric rail system for buses and cars. The vehicles will be outfitted with an automated armature that makes contact with the rail.