Gateshead Central Taxis
Gateshead Central Taxis
There's a difference here though. 'Illegal' being contrary to or forbidden by law, whereas 'aren't allowed' is being contrary to or forbidden by company policy.
I believe that certain operators have policies that buses aren't to be reversed, other than in a bus station, unless a banksman is present to assist. Obviously with it being a company policy, it's up to each individual operator to decide on whether or not they need to have that policy in place. I'd imagine part of the reason behind it is due to either risk assessment or demands placed by insurance companies.