Depends on what infrastructure though; like if it's the railway lines, it should be the railway companies and then sell tickets to make back the cost and earn a profit; like a direct line from one city to a regional airport making for that city or town or village better connected so you could land at that regional airport, and take 1 train to the city rather than 3 hours and 3 changes on the train or whatever or expensive taxi with no coach or bus service so it's either taxi or hire car.
I would if I could build a tram/trolley line that can run from the airport, utilise any existing railway tracks so like TramLink in London the trams/trolleys could partly follow any existing routes.
The transport network/service I'd establish would have to pay and run a service to cover the costs, and maybe get some public funding and goodwill grants from Lottery Tickets?
Teeside (MME) - Whitby
On the existing network; any time saved from flying in from London will be lost getting from the airport to the town.
This airport is only 42 Miles away from Whitby by road
Such an express route is needed for Whitby and its closest airport because the cost of the taxi from the airport to Whitby and back again is £140.00, almost as much as the return flight from London at £149.00.
If we could get that price down so it's at most £15.00 each way so, no more than £30.00 for a return trip, and get 1 dedicated network building tracks in the name of express, so, fast trains doing like 90 mph can do it in 25 minutes and boom/Whitby get an airport that's a real option for them because 'The Whitby Express' Starting in Whitby at one end, and get off at Teeside International Airport (MME) the other, and 'The Whitby Express' could build the track, buy the trams/trolleys or trains and run this.
It's not like I'd have to build many turns, seems like a straight path East to West and I feel The Whitby Express'll be good for Whitby and the airport and Britain as a whole if we could fly in and get to Whitby like anywhere else as a real/valid option of flying in rather than going by land, fly in and get to Whitby in under 30 minutes for £15.00 each way for adults and make other tickets and schemes work out less than that cap so you'd always get a better rate with this Express than taking a taxi, and taxi drivers in Whitby won't have to drag out to the airport.
Why can't the petrol/gas companies like Shell/BP/Esso/Exxon etc pay for electric car charging points and then sell them electricity to cover the cost?
Why not the power company?