There's a 1001 studies concerning city wide transportation, they all reach the same conclusion.
It boils down to:-
Less cars = Better economy.
There's genuinely isn't a single study that states cities businesses, tourism, economy and all financial knock on effects, house prices etc, are harmed by a reduction in cars.
Now there's a 1001 pieces of anecdotal evidence from transportation luminaries like Felicity Kendall that will tell you otherwise, but I'm going to suggest she may not be well versed on all aspects of the science behind transportation.
This 50 in cars, 500 in front of pier I don’t buy, I drive past the pier 20 times a day and at least 50 percent have two people in them !
One of the biggest issues in the city are taxis!
Brighton Hackney Carriages have issued plate numbers upto 999
Brighton PH plates also upto 999
Lewes DC (majority Uber) highest plate number I’ve seen 528
Others? Say 100
Total 2,626
Let’s say a quarter of this total hasn’t been allocated 1,969
Let’s assume 50 percent aren’t working
That then leaves 984 taxis possibly running round Brighton daily !!!!!!!!!!